CN1139482C - High performance absorbent structure - Google Patents

High performance absorbent structure Download PDF

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Publication number
CN1139482C
CN1139482C CNB00802703XA CN00802703A CN1139482C CN 1139482 C CN1139482 C CN 1139482C CN B00802703X A CNB00802703X A CN B00802703XA CN 00802703 A CN00802703 A CN 00802703A CN 1139482 C CN1139482 C CN 1139482C
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base layer
sheet
layer
binder
absorbent structure
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CNB00802703XA
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Chinese (zh)
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CN1336868A (en
Inventor
J・K・达特基维茨
J·K·达特基维茨
S·瓦哈尔
胡德
R·K·胡德
贝默
B·E·贝默
厄斯帕默
J·P·厄斯帕默
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Bki控股公司
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/02Layered products comprising a layer of synthetic resin in the form of fibres or filaments
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/534Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/535Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00Layered products comprising a layer of synthetic resin
    • B32B27/04Layered products comprising a layer of synthetic resin as impregnant, bonding, or embedding substance
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/23Sheet including cover or casing
    • Y10T428/239Complete cover or casing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/30Woven fabric [i.e., woven strand or strip material]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/647Including a foamed layer or component
    • Y10T442/652Nonwoven fabric is coated, impregnated, or autogenously bonded
    • Y10T442/653Including particulate material other than fiber
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/659Including an additional nonwoven fabric
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/659Including an additional nonwoven fabric
    • Y10T442/673Including particulate material other than fiber

Abstract

公开了具有高于约4.0kN/gsm的湿完整性,高于8.0/J的柔软性,高于大约70/N的可挠性并在接受一定量的液体之后提供基本上干燥的液体接受面的一种吸收性结构。 Disclosed above about 4.0kN / gsm wet integrity, softness greater than 8.0 / J, above about 70 / N, and providing a flexible substantially dry liquid after receiving a quantity of the liquid receiving surface an absorbent structure. 该结构包括上层片(82),该上层片具有上流体接收表面和下表面并包括:(i)包括用粘结剂粘结的合成基质纤维的上基层(6),该基质纤维具有大约2到大约15mm的长度,(ii)与上基层(6)实现流体连通的中间基层(8),该中间基层(8)包括天然纤维、超吸收性颗粒和粘结剂;和(iii)与该中间基层(8)实现流体连通的底基层(10),该底基层(10)包括天然纤维和粘结剂。 The structure comprises an upper sheet (82), the upper plate having an upper fluid receiving surface and a lower surface and comprising: (i) a base layer comprising a synthetic matrix fibers bonded by an adhesive (6), the matrix fibers having about 2 a length of about 15mm, (ii) with the base layer (6) to achieve an intermediate base layer (8) in fluid communication, the intermediate base layer (8) including natural fibers, superabsorbent particles and a binder; and (iii) the the intermediate base layer (8) in fluid communication base layer (10), the base layer (10) comprises a natural fiber and a binder. 该结构还包括与上层片(2)实现流体连通的一个下层片(4),该下层片(4)具有上表面和下表面并包括包含天然纤维、超吸收性聚合物颗粒和粘结剂的至少一个基层(13),其中上层片(2)的下表面所具有的表面积低于下层片(4)的上表面面积的大约80。 The structure further comprises a lower layer (4) in fluid communication with the upper layer (2), the lower layer (4) having upper and lower surfaces and comprising comprising natural fibers, superabsorbent polymer particles and a binder at least a base layer (13), wherein the lower surface of the upper sheet (2) having a surface area less than the lower sheet (4) on a surface area of ​​approximately 80.

Description

高性能吸收性结构 High performance of the absorbent structure

相关申请的交叉引用本申请根据35 USC§119要求了基于US临时申请序列号No.60/116,036(1999年1月11日提交)的优先权,它的全部公开内容被引入作参考。 Cross-Reference to Related Applications This application claims priority based on 35 USC§119 based on US Provisional Application Serial No. No.60 / 116,036 (January 11, 1999 filed), and its entire disclosure of which is incorporated by reference.

本发明的领域本发明涉及用于包括婴儿尿布、成人尿失禁用品、卫生巾等的吸收性产品中的高容量、薄而高度舒适的吸收性结构。 The absorbent product of the present invention The present invention relates to include baby diapers, adult incontinence products, sanitary napkins and the like in the high-capacity, high degree of comfort thin absorbent structure. 更特别地,本发明涉及含有基质纤维、粘结剂和超吸收性聚合物的吸收性结构,该结构具有x-方向性流体贮存模式(profile)。 More particularly, the present invention relates to an absorbent structure comprising a matrix fiber, a binder and a superabsorbent polymer, the structure having a fluid reservoir x- directional pattern (profile).

本发明的背景吸收性结构在包括婴儿尿布、成人尿失禁用品、卫生巾等的许多一次性吸收性制品中是相当重要的。 BACKGROUND The absorbent structure of the present invention is very important in many disposable absorbent articles include infant diapers, adult incontinence products, sanitary napkins and the like.

这些及其它吸收性制品通常被提供有吸收性芯材以接受和保留体液。 These and other absorbent articles are generally provided with an absorbent core to receive and retain body fluids. 该吸收性芯材通常被夹在液体可渗透的面片(它的功能是让液体进入到芯材中)和液体透不过的背片(它的作用是夹含液体和阻止液体流经吸收性制品到达该吸收性制品使用者的衣服上)之间。 The absorbent core is usually sandwiched between a liquid-permeable surface sheet (Its function is to allow liquid to enter into the core material) and a liquid impervious backing sheet (its role is to prevent the clip-containing liquid and the liquid through the absorbent ) between the upper reaches of the absorbent article of clothing of the user of the article.

尿布和成人尿失禁用垫料的吸收性芯材常常包括由分离出纤维的、疏松的、起毛的、亲水性的、纤维素类的纤维构成的纤维质絮垫或织网。 The absorbent core diapers and adult incontinence dunnage often comprises separated fibers, loose, fluff, cellulosic hydrophilic fibers composed of cellulosic batts or webs. 该芯材也可包括超吸收性聚合物(“SAP”)颗粒,粒料,碎片或纤维(总称颗粒”)。 The core may also include a superabsorbent polymer ( "the SAP") granules, pellets, chips or fibers (collectively particles ").

近年来,市场上对于更薄和更舒适的吸收性制品的需求日益增加。 In recent years, the market for thinner and more comfortable absorbent article of increasing demand. 此类制品可通过减少尿布芯材的厚度,通过增加SAP颗粒的量,和通过压延或压缩该芯材以减少厚度和因此增加密度来获得。 Such articles by reducing the thickness of the diaper core, by increasing the amount of SAP particles, and by calendering or compressing the core to reduce the thickness and increase the density thus obtained.

然而,高密度芯材不会象低密度芯材那样快速地吸收液体,因为芯材的致密化导致更小的有效孔隙尺寸。 However, high-density low-density core does not absorb as quickly as the liquid core, because densification of the core material results in smaller effective pore size. 因此,为了保持合适的液体吸收,有必要提供比高密度吸收性芯材有更大孔径尺寸的低密度层来提高被排放到吸收性制品上的液体的吸取速率。 Accordingly, in order to maintain a suitable liquid absorption, it is necessary to provide the absorbent core than the high density layer has a density greater pore size to increase the suction rate of the liquid to be discharged on the absorbent article. 该低密度层典型地被称为获取层。 The low-density layer is typically referred to as acquisition layers. 多层吸收性芯材设计包括更复杂的制造过程。 The absorbent core comprises a multilayer design more complex manufacturing process.

例如一次性尿布的贮存层部分一般是在转化过程中从疏松的、起毛的纤维素就地形成。 For example, the storage layer is typically part of a disposable diaper in the conversion process from loose fluff cellulose formed in situ. 该纤维素物质通常无法以预成形的片形获得,因为它显示出不足够的网强度,这归因于它缺乏纤维间结合或缠结,直接退绕或解缠结在制造吸收性垫料的设备上和在该设备中处理。 The cellulosic material is typically not pre-formed to obtain a sheet-shaped, because it does not show sufficient web strength, due to its lack of bonding or entanglement between fibers, or unwound directly in the manufacture of an absorbent litter disentangled and the processing device in the apparatus.

一些吸收性制品如超薄型妇女用卫生巾一般是从卷绕型非编织材料制造。 Some ultra-thin absorbent articles such as women are generally manufactured from non-woven material wound-type sanitary napkin. 一卷预先制备的吸收性型芯材料作为原料被直接退绕在吸收性制品转换设备中而不必使用对于起毛型产品如尿布和尿失禁垫料正常所要求的脱纤维步骤。 The absorbent core material as a raw material previously prepared roll is unwound directly without the use of the absorbent article in the conversion apparatus defibration fluffing steps such as diapers and incontinence products are required for normal litter. 该非纺织的织网典型地以一种方式被粘结或固结,该方式使它有足够的强度以便在转化过程中进行处理。 The nonwoven webs are typically bonded in a manner or consolidated in a manner so that it has sufficient strength for processing in the conversion process. 从该非纺织的织网制得的吸收性结构也可含有SAP颗粒。 Obtained from the non-woven mesh made of the absorbent structure may also contain SAP particles. 然而,对于要求获取和吸收高量或涌出的体液的情况,这些吸收性结构常常是不够的。 However, in the case of capturing and absorbing high amounts of body fluid or gush, the absorbent structure often insufficient. 在这些情况下,单片形吸收性材料常常不足以完全利用该吸收性芯材,因为该液体不是沿着吸收性芯材的长度方向上分布在该结构中。 In these cases, a single piece shaped absorbent materials are often insufficient to fully utilize the absorbent core, since the liquid is not distributed in the longitudinal direction along the configuration of the absorbent core. 结果,吸收性芯材的许多区域没有利用上。 As a result, many regions of the absorbent core is not utilized on.

在制造预成形芯材的卷绕型方法中使用的织网固结机理为织网提供强度和尺寸稳定性。 Mesh consolidation mechanism used in the method of manufacturing a wound type preformed core material provides strength and dimensional stability to the mesh. 此类机理包括胶乳粘结,用热塑性塑料或双组分纤维或热塑性粉末粘结,水织缠结,针穿孔、梳理等。 Such mechanisms include a latex binder, thermoplastic bicomponent fibers or plastic or thermoplastic powder adhesive, water entanglement knitting, needlepunching, carding. 然而,这类粘结材料提供比较刚性的芯材,常常不能很好地适应人体的形状,尤其在要求良好地贴合来获取和含有高体积的体液时的那些情况下。 However, such binder materials provide relatively rigid core, often not well adapted to the body shape, requiring in particular to obtain good bonding and containing those cases when a high volume of fluid.

吸收性芯材的可挠性和柔软性是确保吸收性芯材能够容易地让其本身适应人体的形状或与之邻近的吸收性制品的组件(例如另一吸收性层片)的形状所必需的。 Flexibility and softness of the absorbent core is to ensure that the absorbent core can be easily lend itself to accommodate the shape of the absorbent article or components adjacent thereto of the human body (e.g. the absorbent layer further sheet) shape required of. 这反过来阻止在吸收性制品和人体之间或在吸收性制品的各种部件之间形成缝隙和通道,另外引起该吸收性制品中所不希望的渗透。 This in turn prevents the absorbent article and the body or between the slits and channels are formed between the various components of the absorbent article, the absorbent article additionally cause undesirable penetration.

吸收性芯材的完整性是确保吸收性芯材在消费者使用过程中不变形和不显示出不连续性所必需的。 The absorbent core integrity is to ensure that the absorbent core is not deformed and discontinuities do not show essential consumer use. 此类变形和不连续性能够导致总体吸收性和容量的下降和所不希望的渗漏的增加。 Such variations and discontinuities can lead to increased leakage and decreased overall absorbent capacity and undesirable. 以前的吸收性结构缺乏可挠性,完整性,模式吸收性和容量中的一个或多个。 The absorbent structure of the previous lack of flexibility, integrity, and the capacity of the absorbent pattern of one or more. 例如,普通(短纤桨)芯材由于其高度可挠性和柔软性而具有良好的适应性,但与此同时由于它的差完整性而容易在使用过程中碎裂。 For example, ordinary (fluff pulp) a core material due to its high flexibility and softness while having good adaptability, but at the same time due to the difference in its completeness is easily broken during use. 作为另一实例,某些粘结的芯材,如从纤维素短纤桨制造的、压实至0.35g/cc的气流成网的芯材具有良好的干燥完整性,但具有差的湿完整性和差的适应性。 As another example, some of the core material bonding, such as manufactured from cellulose fluff pulp, compacted to 0.35g / cc airlaid core of material having good drying integrity, but has poor wet complete and poor adaptability.

这里所述的吸收性材料显示出x-方向性贮存模式,适应性和完整性的良好结合。 The absorbent materials described herein exhibit good binding reservoir x- directional mode, adaptability and integrity. 这一结合提供了改进的流体获取和夹含以及增加的舒适性和减少的渗漏潜在可能性。 This combination provides comfort and reduce the potential for leakage and improved fluid acquisition and folders containing added. 此外,这里所公开的吸收性材料的改进完整性减少了吸收性材料发生变形的危险和更好地保护使用者的皮肤的表面防止与液体接触。 In addition, improved integrity of the absorbent materials disclosed herein reduces the risk of deformation of the surface occurring absorbent materials and better protect the user's skin to prevent contact with the liquid.

本发明的概述本发明涉及具有高于约4.0mN/gsm的湿完整性,高于8.0/J的柔软性,高于大约70/N的可挠性并在接受一定量的液体之后提供基本上干燥的液体接受面的一种吸收性结构。 Summary of the Invention The present invention relates to above about 4.0mN / gsm wet integrity, softness greater than 8.0 / J, above about 70 / N provide a flexible and after receiving a quantity of liquid substantially drying the liquid receiving surface of an absorbent structure. 该结构包括一个上层片,该层片具有上流体接收表面和下表面并包括:上基层,该上基层包括用粘结剂粘结的合成基质纤维,该基质纤维具有约2到约15mm的长度;与上基层实现流体连通的中间基层,该中间基层包括天然纤维、超吸收性颗粒和粘结剂;和与中间基层实现流体连通的底基层,该底基层包括天然纤维和粘结剂。 The structure includes an upper sheet, the upper layer sheet having a fluid receiving surface and a lower surface and comprising: a base layer, the base layer comprises the adhesive bonding of synthetic matrix fibers, the matrix fibers have a length of from about 2 to about 15mm ; intermediate base layer and the base layer to achieve fluid communication, the intermediate base layer comprising natural fibers, superabsorbent particles and a binder; and a base layer to achieve the intermediate base layer in fluid communication with the bottom base layer comprising natural fibers and a binder. 该结构还包括与上层片实现流体连通的一个下层片,该下层片具有上表面和下表面并包括包含天然纤维、超吸收性聚合物颗粒和粘结剂的至少一个基层,其中上层片的下表面所具有的表面积低于下层片的上表面面积的大约80%。 The structure further includes a lower layer fluid communication with the topsheet, the lower layer sheet having an upper surface and a lower surface and comprising at least one base layer comprising natural fiber, superabsorbent polymer particles and a binder, wherein the upper layer sheet about 80% of the surface have a surface area less than the lower sheet on the surface area.

附图的简述图1a-1d描绘了包括上吸收性层片和下吸收性层片的本发明的吸收性结构。 DESCRIPTION OF THE DRAWINGS FIG 1a-1d depict the absorbent structure of the present invention includes an absorbent layer of the absorbent sheet and the lower layer sheet. 图2是在Gurley试验装置中使用的改性夹具的略图。 FIG 2 is used in a test apparatus Gurley slightly modified jig of FIG. 图3描绘了用于测量柔软性的装置的略图。 3 depicts a sketch of the apparatus for measuring flexibility.

本发明的详细说明在本申请中引用的所有参考文献被全部引入作参考。 All references cited in the detailed description of the present invention cited in this application are fully incorporated by reference. 对于技术名词不一致的情况,受本公开文本的约束。 For the case of inconsistencies technical terms, it is bound by this disclosure.

本发明包括由粘结的吸收性材料组成的至少两层片的吸收性结构,其中这些层片相互实现流体连通。 The absorbent structure of the present invention comprises at least two layers of absorbent sheet material of the adhesive composition, wherein the plies in fluid communication with each other. 参考图1a,该结构包括:(a)具有三个基层6、8和10的较短上层片2和(b)更长的下吸收性层片4。 Referring to Figure 1a, the structure comprising: (a) having three base layer 6,8 and the upper layer sheet 10 is shorter and 2 (b) is longer in the absorbent layer sheet 4. 一般而言,上层片2的底面的表面积低于下层片4的上表面的表面积的80%。 Generally, the surface area of ​​the bottom surface of the upper layer 2 is less than 80% of the surface area of ​​the upper surface of the lower sheet 4. 这一排列设置与单层片芯材结构相比而言的优点是在消费者使用该吸收性制品的期间可使该吸收性材料更好地夹含液体和充分得到利用。 This arrangement is provided with a single-layer sheet structure of the core material compared to the advantage of the absorbent article during use may cause the absorbent material containing a liquid and a better clip fully used in the consumer.

参考图1b,通过提供以上所述的两层片结构所获得的优点是从人体排放流体主要发生在吸收性芯材的正面16和中心18区域中。 Referring to FIG 1b, the advantages of the two-layer structure sheet obtained above providing the body fluid emission occurs mainly in the front region 18 of the absorbent core 16 and from the center. 本发明在排放液体浸蚀该芯材的区域中提供更多的吸收性容量。 The present invention further provides an absorbent capacity in the liquid discharge region of the core of the etching. 此外,上层片2的总密度低于下层片4的总密度。 Further, the total density of the upper layer is lower than the total density of the lower sheet 4. 密度的这一差异使得改进了液体获取和再润湿功能,因为由于在各层片之间的毛细管张力梯度,液体从上层片进入到下层片中。 This difference is such that the density of the improved liquid acquisition and rewet function, because the tension due to the capillary gradient between the layers of the sheet, the liquid enters from an upper sheet to a lower sheet.

该上层片和该下层片两者都含有粘结剂和SAP颗粒。 Both the upper layer sheet and the lower sheet contains binder and SAP particles. 一般而言,该上层片比下层片含有更高浓度的SAP颗粒。 In general, the upper layer containing a higher concentration of SAP particles than the lower sheet. 该下层片含有相当于下层片重量的至少30%SAP颗粒。 The lower layer sheet comprising at least 30% SAP by weight of the particles corresponding to the lower layer. 高浓度的SAP颗粒在吸收性结构内提供高吸收容量和液体保留能力。 High concentration of SAP particles in the absorbent structure to provide a high absorption capacity and liquid retention capacity. 另一方面,SAP颗粒在上层片中的较低浓度是理想的,因为在吸收性结构的这一部分中凝胶阻断(这将阻止流体向下流入下层片中)可以避免。 On the other hand, a lower concentration of SAP particles in the upper layer film is desirable, since this part of the gel blocking of the absorbent structure (which would prevent fluid from flowing down into the lower layer film) can be avoided.

在本发明中,该SAP颗粒可均匀分散在纤维和粘结剂的基质中。 In the present invention, the SAP particles may be uniformly dispersed in the matrix and binder fibers. 另外,该SAP颗粒可放置在该结构内的离散部位或区域中。 Further, the SAP particles within the structure may be placed in discrete portions or areas. 例如,参考图1c和1d,该SAP颗粒可放入沿着该吸收性芯材的窄通道20中。 For example, with reference to FIGS. 1c and 1D, the SAP particles may be placed along the narrow passage 20 of the absorbent core. SAP颗粒的通道然后被用粘结剂粘结的纤维22的通道隔离。 Channel SAP particles are then isolated by passage 22 adhesively bonded fibers. SAP颗粒的这一离散布置使得该颗粒可以更好地被夹含,促进液体在Z-方向上的流动(因为有很少或没有SAP的区域的存在)和使得流体沿着芯材的长度方向(x-方向)更容易流动和芯浸吸。 This arrangement of discrete SAP particles so that the particles can be better clip containing, facilitate the flow of the liquid in the Z- direction (SAP because there is little or no presence area) and the longitudinal direction of the fluid such that the core material (x- direction) and a core flow more easily imbibed. 有很少或没有SAP颗粒的区域另外可致密化以改进完整性和在更小孔隙内产生更高的毛细管张力。 There is little or no SAP particles may be further densified region to improve the integrity and smaller pores within the capillary force generated higher. 优选地,沿着吸收性结构的长度方向加以致密化。 Preferably, it is densified along the longitudinal direction of the absorbent structure. 该材料的可挠性因此得以保持,尤其在y-方向(横过该芯材)上。 Thus the material can be kept flexible, especially in the y- direction (transverse to the core material) on.

参考图1a,示出了本发明的优选吸收性结构的示意性剖面图。 Referring to Figure 1a, it shows a schematic cross-sectional view of the absorbent structure of the present invention preferably. 该吸收性结构包括上层片2和下层片4。 The absorbent structure comprises an upper sheet 2 and lower sheet 4. 上层片2包括三个基层6,8和10和优选制造成单个气流成网结构。 2 includes three upper layer sheet 6, 8 and 10 and the base layer is preferably fabricated as a single air-laid structures. 上基层6是低密度获取层,后者包括50-99wt%的可润湿合成纤维,优选75-90wt%的合成纤维,基层的余量是粘结物质。 6 the base layer is a low density acquisition layer comprising 50-99wt% wettable synthetic fibers, synthetic fibers preferably 75-90wt%, the balance of the base layer is a bonded material. 由于与下面的各层相比有较低密度,更大孔径尺寸,和更低的可润湿性,上基层6本质上没有含水液体芯浸吸能力。 As compared with the underlying layers have a lower density, without immersion aqueous liquid absorption capacity of the core over a larger pore size, and lower the wettability of the nature 6, on the base layer. 流体容易从它向下浸吸到下面的更容易润湿和更小孔隙、更高密度的基层中。 It is easy to dip downward fluid sucked from the following more wettable and less porosity, higher density base layer. 上基层6包括厚度为2-30旦尼尔,优选6-15旦尼尔的合成纤维。 6 on the substrate comprises a thickness of 2 to 30 denier, preferably 6 denier synthetic fibers. 该合成纤维具有2-15mm,优选4-12mm的长度。 The synthetic fibers having a 2-15mm, preferably 4-12mm in length. 任选地,该纤维可皱缩和具有各种横截面形状。 Optionally, the fibers may shrink and have various cross-sectional shapes. 上层片2的上基层8具有20-120gsm(g/m2),优选30-60gsm的单位重量。 2 the upper layer sheet on the substrate 8 having 20-120gsm (g / m2), preferably 30-60gsm unit weight.

上层片2的中间基层8主要由天然纤维组成和也含有SAP颗粒。 Intermediate upper sheet 8 of the base layer 2 is mainly composed of natural fibers and also contains SAP particles. 在该基层中SAP颗粒的含量是上层片2重量的5-60%,优选上层片重量的20-40%。 The content of the SAP particles in the base layer is 5-60% by weight of the upper layer 2, preferably 20 to 40% by weight of the topsheet. 上层片的中间基层的单位重量是50-1000gsm(g/m2),优选80-300gsm。 Intermediate basis weight of the base layer is the upper layer sheet 50-1000gsm (g / m2), preferably 80-300gsm. 上层片的中间基层可用任何合适类型的粘结剂来粘结。 The intermediate base layer of the topsheet by any suitable type of adhesive for bonding. 优选,该粘结剂是双组分热塑性纤维,以相当于中间基层的单位重量的1-15%和优选5-10%的量存在于中间基层8中。 Preferably, the binder is a thermoplastic bicomponent fibers, and an amount corresponding to 1-15%, preferably 5-10% by weight of the intermediate base units present in the intermediate base layer 8.

上层片2的底基层10包括粘结的天然纤维。 2 the upper layer sheet 10 includes a substrate layer bonded natural fibers. 这一层例如可以是用粘结剂(典型用于造纸工艺中)粘结的湿法成网纤维素组织。 This may be, for example, with an adhesive layer (typically used in paper making process) wetlaid cellulosic tissue bonding. 任选地,这一组织也可用例如一种或多种热-活化粘结剂(如双组分粘合纤维)浸渍,该粘结剂可在网固化过程中被活化和然后将该组织与它上方的基层粘结在一起。 Optionally, the tissue can also be used such as one or more heat - activate the binder (e.g., bicomponent binder fibers) impregnated with a binder which can be activated, and then the tissue web and in the curing process bonding together the base layer above it. 上层片的底基层也可在上层片的形成过程中形成,例如作为粘结的气流成网铺敷层。 Upper base layer sheet may be formed during the formation of the upper layer sheet, for example, as a plated layer bonded airlaid. 任何合适的粘结剂可用来粘结基层10。 Any suitable adhesive may be used to bond the base layer 10. 如果,例如,粘合纤维用于此目的,它以底基层10的单位重量的3-15%和优选5-10%的量存在。 If, for example, binder fibers used for this purpose, it is in an amount of 5-10%, 3-15% by weight of the unit and the substrate layer 10 is preferably present. 其它粘结剂,如通常在湿法造纸工艺中使用的胶乳型粘结剂或水可分散的粘结剂也是合适的。 Other binders, such as latex binder or water type typically used in wet paper making process dispersible binder is suitable. 基层10具有10-200gsm,优选15-90gsm的单位重量。 Base 10 has 10-200gsm, the basis weight preferably 15-90gsm.

下吸收性层片4是天然纤维和SAP颗粒的粘结结构。 The absorbent sheet 4 the lower layer of natural fibers and bonding structure of the SAP particles. 一般而言,SAP颗粒在下层片4中的量(wt%)高于SAP颗粒在上层片2中的量。 Generally, the amount of SAP particles (wt%) in the lower layer 4 is higher than the amount of SAP particles in the upper layer sheet 2. 该下层片含有30-80wt%的SAP颗粒,和优选40-60wt%。 The lower layer sheet comprising 30-80wt% SAP particles, and preferably 40-60wt%.

任选地,下层片4可含有上基层12,后者包括粘结的天然纤维用于更好地在基层13或它下方的基层中夹含SAP颗粒。 Optionally, the lower layer 4 may contain a base layer 12, which comprises an adhesive for better natural fibers in the grass or substrate 13 beneath it in the folder containing the SAP particles. 任何合适的粘结剂可用于粘结该下层片的结构。 Any suitable adhesive may be used for structural bonding of the lower layer sheet. 如果,例如,使用粘合纤维,它以相当于下层片重量的1-8%、优选2-5%的量存在。 If, for example, using an adhesive fiber which is equivalent to 1-8% by weight of the lower layer, preferably present in an amount of 2-5%.

一般而言,下层片4具有的总密度高于上层片2的总密度。 In general, the lower sheet 4 having an overall density higher than the total density of the upper layer 2 of the sheet. 下层片的密度可以是0.1-0.35g/cc(克/每立方厘米),优选0.15-0.25g/cc。 The density of the lower sheet may be 0.1-0.35g / cc (g / per cubic centimeter), preferably 0.15-0.25g / cc. 高于0.35g/cc的密度是不希望有的,因为对于该致密结构发现降低的形状适应性。 A density of greater than 0.35g cc / is undesirable, because it was found conformable to the reduction of a dense structure. 下层片的单位重量可以是100-1000gsm,优选150-400gsm。 The basis weight of the lower layer sheet may be 100-1000gsm, preferably 150-400gsm.

本发明的吸收性结构能够通过各种成型方法和使用各种原料如天然和合成纤维,各种类型的SAP颗粒,和不同类型的粘结剂(包括纤维、粉料或液体)来制造。 The absorbent structure of the present invention can be produced by various molding methods and using a variety of materials such as natural and synthetic fibers, various types of SAP particles, and different types of binder (including fibers, powder or liquid) is manufactured.

可被用于本发明中的天然纤维的类型的例子包括:从棉花,软木纸浆和/或硬木纸浆,稻草制备的起毛的纤维素纤维,克夫(keaf)纤维通过化学、机械和/或热处理改性的纤维素纤维,角蛋白纤维如从羽毛获得的纤维,以及用天然聚合物如纤维素、甲壳质和角蛋白制造的人造短切纤维。 Examples of the type used in the present invention include natural fibers may be: from cotton, softwood pulp and / or hardwood pulps, fluff cellulose fibers produced straw, quebracho (keaf) fibers by chemical, mechanical, and / or Heat Treatment of cellulose fibers, keratin fibers such as fibers obtained from feathers, as well as cut staple fibers with natural polymers such as cellulose, chitin, and keratin manufacture. 合适的合成基质纤维的例子包括聚乙烯,聚丙烯,聚酯(包括聚对苯二甲酸二醇酯(PET)),聚酰胺,乙酸纤维素和人造丝纤维。 Examples of suitable synthetic matrix fibers include polyethylene, polypropylene, polyesters (including polyethylene terephthalate glycol ester (the PET)), polyamides, cellulose acetate and rayon fibers. 某些疏水的合成纤维,如聚烯烃类,应该用表面活性剂进行表面处理以改进湿润性。 Certain hydrophobic synthetic fibers, such as polyolefins, should be surface treated with a surfactant to improve wettability.

US专利No.5,147,343;5,378,528;5,795,439;5,807,916;和5,849,211,描述了各种超吸收性聚合物和制造方法,因此引入这里作参考。 US Patent No.5,147,343; 5,378,528; 5,795,439; 5,807,916; and 5,849,211, describe various superabsorbent polymers and methods of manufacture, and therefore incorporated herein by reference. 可用于本发明中的SAP颗粒的类型的例子包括粒状形式的超吸收性聚合物,如不规则粒料,球状颗粒,短切纤维及其它针状颗粒。 Examples of superabsorbent polymer can be used in the type of the SAP particles in the present invention includes a particulate form such as irregular granules, spherical particles, staple fibers and other needle-shaped particles. 术语“超吸收性聚合物”或“SAP”正常指已经交联的水溶性聚合物。 The term "superabsorbent polymer" or "the SAP" refers to a normal water-soluble polymers have been crosslinked. 现有已知的使水溶性聚合物如羧基聚电解质产生水凝胶形成用物质的方法,现在一般称为超吸收性物质或SAP,并且都知道使用此类物质来增强一次性吸收性制品的吸收能力。 Water-soluble polymers conventionally known as a carboxyl group polyelectrolytes method to produce a hydrogel forming material, now generally referred to as superabsorbents or the SAP, and the use of such substances are known to enhance the disposable absorbent article absorptive capacity. 还有已知的将羧基化聚电解质加以交联以获得超吸收性聚合物的方法。 There are also known to be a method to obtain a crosslinked polyelectrolyte superabsorbent polymer is carboxylated. 用于实施本发明的SAP颗粒可从多个制造商购买到,其中包括Dow Chemical(Midland,密执安州),Stockhausen(Greensboro,北卡罗来纳州),和Chemdal(ArlingtonHeights,伊利诺斯州)。 SAP particles used in the practice of the present invention can be purchased from multiple manufacturers to, including Dow Chemical (Midland, Michigan), Stockhausen (Greensboro, North Carolina), and Chemdal (ArlingtonHeights, Illinois). 一种普通的粒状超吸收性聚合物是以聚(丙烯酸)为基础的,它已在聚合过程中用许多种现有技术中周知的多官能团共聚单体交联剂中的任何一种进行交联。 A conventional granular superabsorbent polymer is poly (acrylic acid) based, it has many known prior art in any of a copolymerizable polyfunctional cross-linking agent in the monomer employed in the polymerization process cross Union. 多官能交联剂的例子见于US专利No.2,929,154;3,224,986;3,332,909;和4,076,673。 Examples of the polyfunctional crosslinking agents are found in US Patent No.2,929,154; 3,224,986; 3,332,909; and 4,076,673. 其它水溶性的聚电解质聚合物已知可用于通过交联制备超吸收性材料,这些聚合物包括羧甲基淀粉,羧甲基纤维素,脱乙酰壳多糖盐,明胶盐,等等。 Other water-soluble polyelectrolyte polymers are known to be prepared by crosslinking a superabsorbent material, these polymers include carboxymethyl starch, carboxymethyl cellulose, chitosan salts, gelatin salts, and the like. 然而,它们一般不在工业规模上用来增强一次性吸收性制品的吸收能力,主要由于低的吸收效率或高成本。 However, they are generally used to enhance the absorbent capacity of the disposable absorbent article is not on an industrial scale, mainly due to the low absorption efficiency or high cost.

可用于本发明的吸收性结构中的粘结剂的例子包括固体或液体形式的聚合物粘结剂。 Examples of the present invention can be used in the absorbent structure in the binder include solid or liquid form of the polymeric binder. 术语“聚合物粘结剂”是指能够在基质纤维之间产生纤维间粘结作用以增强层片的完整性的任何化合物。 The term "polymeric binder" refers to generate inter-fiber bonding effect between matrix fibers to increase the integrity of the compound of any of the plies. 同时,粘结剂可任选将粘合纤维和SAP颗粒粘结在一起。 Meanwhile, the adhesive binder may optionally fibers and SAP particles together. 例如,天然或合成弹性胶乳的分散体可用作粘结剂。 For example, a natural or synthetic elastomer latex dispersion may be used as a binder. 合适的胶乳粘合剂的例子是丙烯酸酯,乙酸乙烯酯和苯乙烯-丁二烯的聚合物和共聚物。 Examples of suitable latex binder is an acrylate, vinyl acetate and styrene - butadiene polymers and copolymers. 现有技术中周知的热塑性纤维或粉料也可用于在将吸收性结构加热到热塑性纤维或粉料的熔点后提供粘结作用。 Well known in the prior art thermoplastic fiber or powder can also be used to provide a cohesive effect upon the absorbent structure is heated to the melting point of the thermoplastic fiber or powder. 能够用于稳定本发明的吸收性结构的其它粘结剂包括用于粘结纤维素纤维的粘结剂。 Other binders can be used to stabilize the absorbent structures of the present invention comprises an adhesive for bonding cellulosic fibers. 这些试剂包括分散在水中的聚合物,它在施涂于纤维质网上之后固化并在纤维之间或在纤维和SAP颗粒之间产生粘结。 These agents include polymers dispersed in water, it cures after application to a fibrous web and effect bonding between the fibers or between fibers and SAP particles. 这类试剂的例子包括含有可交联的官能团的各种阳离子淀粉衍生物和合成的阳离子聚合物,如聚酰胺-聚胺表氯醇加合物,阳离子淀粉,双醛淀粉等。 Examples of such agents include cationic polymers of various cationic starch derivatives and synthetic containing crosslinkable functional group such as polyamide - polyamine epichlorohydrin adducts, cationic starch, dialdehyde starch and the like. 以上所述的聚合物粘结剂的任何结合物可用于稳定本发明的结构。 Any combination of the above polymer binder can be used to stabilize the structure of the present invention. 在一个实施方案中,本发明中的粘结剂是粘合纤维,它包括低于约10wt%的SAP颗粒。 In one embodiment, the present invention is an adhesive binder fiber which comprises less than about 10wt% of the SAP particles. 在本发明的另一实例中,粘合纤维占吸收性结构的约7wt%以下。 In another embodiment of the invention, the binder fibers comprise about 7wt% or less of the absorbent structure.

这里使用的“完整性”是纤维质片材的拉伸强度相对于单位单位重量标称化后的量度,并以对于每1gsm的标称化单位重量为破坏片材的1英寸宽样品所需要的x-方向上力的单位(毫牛顿,mN)表示。 "Integrity" as used herein is the tensile strength of the fibrous sheet of the unit after the unit weight normalized relative metric, and is normalized for a basis weight per 1gsm destruction of sheet 1 inch wide sample required unit (millinewtons, mN) of force on the x- direction represents. 为了测量吸收性芯材或商购吸收性产品的湿完整性(湿拉伸强度),使用下面的程序:1.制备1英寸×4英寸样品。 In order to measure the absorbent core of the absorbent product or commercially available wet integrity (wet tensile strength), using the following procedure: 1. Preparation of 1 inch × 4 inch sample. 对于具有明显纵向和横向的样品,在纵向上切4-英寸尺寸。 For a significant longitudinal and lateral samples, 4- inch cut in the longitudinal dimension.

2.除去任何可除去的塑料背片,覆盖料或合成的获取材料,仅留下芯材。 2. removing any removable plastic backing sheet, covering material or synthetic acquisition material, leaving only the core material.

3.称量样品。 3. Weigh the sample. 使用移液管或喷药瓶将0.9%盐溶液(以等于样品重量的两倍的量)施加到样品的中心(实例:样品称量1.00g。施加2.00g盐溶液,一起总共达到3.00g)。 Using a pipette or spray bottle to 0.9% saline solution (an amount equal to twice the weight of the sample) applied to the center of the sample (Example: Sample Weigh 1.00g 2.00g salt solution is applied, to achieve together a total of 3.00 g) .

4.通过放置在加压夹具中来将样品插入张力试验机(例如Thwing-Albert LT-150通用材料试验机,缺省软件设定值用于试验)中。 4. By placing the sample to a tensile tester insert in the pressing fixture (e.g. Thwing-Albert LT-150 universal testing machine, the default value is used to test software) in the.

5.开始试验。 5. Start the test.

6.当试验完成时,记录所显示的结果。 6. When the test is completed, the recording results displayed. 这些结果包括峰值作用力,峰值伸长率,扯断伸长率,峰值能量,和最大能量。 These results include the peak force, peak elongation, elongation at break, peak energy, and the maximum energy.

这里所使用的湿完整性被定义为通过使用以上程序测量的峰值作用力。 As used herein, wet integrity is defined as the peak force measured by using the above procedure. 本发明的吸收性结构的湿完整性高于4.0mN/gsm,和优选高于6.0mN/gsm。 Wet integrity of the absorbent structure of the present invention is higher than 4.0mN / gsm, and preferably higher than 6.0mN / gsm.

吸收性结构的柔软性是该结构的总体适应性的一个重要因素。 The flexibility of the absorbent structure is an important factor in the overall suitability of the structure. 这里所使用的“柔软性”是压缩该片材所需要的能量值的倒数,在这种情况下该片材是吸收性结构。 As used herein, "flexibility" is the reciprocal of the compression energy values ​​required for the sheet, the sheet in this case an absorbent structure. 为压缩片材所需要的能量值越大,柔软性越低。 Sheet compression energy required value, the lower the flexibility.

为了测量芯材的柔软性,使用下面程序(改进的压缩试验):1.通过裁切4英寸×8英寸片来制备样品(如果样品是尿布,从尿布较厚部分(如果厚度不均匀的话)切下。对于有明显纵向和横向的样品,在纵向上裁切8-英寸尺寸)。 To measure the softness of the core material, using the following procedure (improved compression test): 1. The samples are prepared by cutting four inches × 8 inch sheet (if the sample is a diaper, from the thicker portion of the diaper (the case if the thickness unevenness) cut for longitudinal and transverse samples obviously, cut 8-inch dimension in the longitudinal direction).

2.让塑料背片和覆盖材料保留在样品上(贴合在商购尿布样品上)。 2. Let plastic backing sheet and the cover material remains on the sample (bonded to the diaper in commercially available samples). 如果测试原型芯样品,将塑料背片(Exxon EMB-685聚乙烯薄膜)贴合到样品的底部和覆盖料(15gsm Avgol纺粘聚丙烯)贴合到样品的表面(与样品有同样尺寸,喷涂少量粘合剂来粘附)。 If the core sample testing prototypes, the plastic backing sheet (Exxon EMB-685 polyethylene film) bonded to the bottom of the sample and the cover material (15gsm Avgol spunbond polypropylene) bonded to a surface of a sample (sample having the same dimensions, spraying a small amount of adhesive adhered).

3.程序改进的压缩试验(例如,Thwing-Albert LT-150通用材料试验机):使用下列的非缺损设定值的压缩试验:破坏检测方法=%掉下/位移,破坏值=%掉下=50,距离档(distance traps)=0.3in./0.5in./0.7in.,单元:距离/位移=英寸;力=g,试验速度=1in./min。 3. The improved compression test procedures (e.g., Thwing-Albert LT-150 universal testing machine): The following test using a compression set value of the non-defect: damage =% fall detection / displacement value =% fall damage = 50, the distance profile (distance traps) = 0.3in / 0.5in / 0.7in, unit: distance / displacement = inch; = G force, test speed = 1in / min..... 所有其它设定值保留在缺损值。 All other values ​​are reserved is set in the defective value.

4.使用在图3中所描绘的定制夹具将样品插入张力试验机中。 4. In FIG. 3 depicted in custom fixtures Insert the sample in the tensile testing machine. 样品以其边缘插入,使得它在y-方向(4-英寸方向)上被压缩,两边缘在定制夹具中有1英寸,因此留下2-英寸缝隙。 Samples its edge is inserted so that it is compressed in the direction of y- (4-inch direction), and 1 inch in both edges of the custom fixtures, thus leaving a 2-inch gap.

5.开始试验。 5. Start the test.

6.当挠曲超过0.7英寸时,在表面上按压加压夹具来模拟样品坏掉和然后停止试验(不影响试验结果)。 6. When flexed more than 0.7 inches, the upper surface of the pressing jig to simulate pressing, and then stop the test sample is broken (not affect the test results). 记录所显示的结果。 Record results shown. 这些结果包括峰值作用力,峰值挠曲,最大挠曲,峰值能量,和在最大挠曲下的能量,和在距离档下的作用力。 These results include the peak force and peak deflection, the maximum deflection, peak energy, and the energy at maximum deflection, force and at a distance profile.

用于计算柔软性的值是在最大挠曲下的能量,以焦耳表示。 Softness for calculating energy values ​​are at maximum deflection, expressed in Joules. 最大挠曲下的能量,Ed max,是根据下面的公式计算的:Edmax=∫dmindmaxFdd]]> Energy, Ed max at the maximum deflection is calculated according to the following formula: Edmax = & Integral; dmindmaxFdd]]>

当Edmax是在最大挠曲下的能量时,F是在给定挠曲d下的力,dmin和dmax分别是在试验开始和在试验结束时的挠曲。 When Edmax energy when at maximum deflection, F is the force at a given deflection d, dmin and dmax are flexed at the end of the test and the beginning of the test.

柔软性,S,在这里是根据下面的公式来定义:S=1/(最大挠曲下的能量)。 Softness, S, is herein defined according to the following formula: S = 1 / (energy at maximum deflection).

该结果,S,在这里是以1/焦耳(1/J)表示。 As a result, S, where is 1 / J (1 / J) FIG.

一般而言,本发明的总体吸收性结构的柔软性应该高于8.0/J,优选高于15/J。 In general, the overall flexibility of the absorbent structure of the present invention should be above 8.0 / J, preferably higher than 15 / J.

吸收性结构的可挠性也是片材的总体适应性的一个重要因素。 An important factor is the general adaptability of the flexible sheet of the absorbent structure. 这里所使用的“可挠性”是弯曲该片材所需要的力的值的倒数,在这种情况下该片材是本发明的吸收性结构。 As used herein, "flexible" is the inverse of the bent sheet required force, in this case the sheet of an absorbent structure of the present invention. 为弯曲该片材所需要的力越大,片材的可挠性越低。 The greater the force required to bend the sheet, the lower flexible sheet material.

可挠性能够使用Gurley试验装置(Model 4171,Gurley PrecisionInstruments,Trey,NY)通过下面的程序来测量。 Flexibility can be measured by the following procedure using the Gurley tester (Model 4171, Gurley PrecisionInstruments, Trey, NY).

1.尽可能精确地裁切样品成1英寸×3.25英寸。 1. Samples to be precisely cut 1 inch × 3.25 inch possible. 如果有确定的纵向和横向,在各方向上和各试验中裁切一个样品。 If there is the determined longitudinal and lateral, cut a sample in each direction and each experiment.

2.在Gurley试验装置上配备的原夹具上装配如图3中所示的自己定制的夹具,并拧紧较小的上部翼形螺钉加以固定(参见图2,说明了为较高单位重量的、高级(lofty)的片材所用的定制夹具)。 Own custom jig 3 shown in the original 2. On the Gurley test jig with the assembled apparatus shown in FIG, and tighten the thumbscrew smaller upper portion to be fixed (see FIG. 2, illustrates a higher unit weight, advanced custom fixtures (Lofty) sheet used). 该定制夹具以这样一种方式来设计,使得在材料插入夹具中时不改变被试验材料的厚度。 The custom fixtures designed in such a way that the material to be tested without changing the thickness of the material of the insertion jig. 如果由于夹具夹紧的缘故而改变厚度,则结构的性质发生变化和使用Gurley试验装置所获得的结果会受到影响。 If for the sake of the clamping jig and varying the thickness, the nature of changes in the structure and use of the results obtained Gurley tester will be affected. 在本方法中,使用图3的夹具来消除这一所不希望的影响。 In this method, using the jig of Figure 3 to eliminate the influence of this undesirable.

3.通过拧松较长的、下部翼形螺钉来打开该定制夹具可调节的板。 3. Open the customized fixture can be adjusted by unscrewing the plate longer, a lower thumbscrew. 通过让样品滑动直至它刚好接触原夹具来将样品放入夹具中。 By allowing the sample until it just touches the slide clamp to the original sample is placed in a chuck. 在定制夹具中应该夹含了样品的2.0英寸。 In the folder containing custom fixtures should be 2.0-inch samples.

4.通过拧松原夹具上的高度调节螺钉来调整定制夹具的高度。 4. The adjustment screw is screwed by Matsubara height adjustment jig highly customized fixture. 调节高度使得在样品离开定制夹具的点和在样品接触杠杆臂的点之间存在1.0英寸的缝隙。 Adjusting the height of the sample so that the point of departure custom fixtures and a 1.0 inch gap exists between the contact point of the lever arm of the sample.

5.确保样品的剩余0.25英寸延伸到杠杆臂的顶部的下方。 The remaining 0.25 inches to ensure that the sample extends below the top of the lever arm. 确保杠杆臂不会移动。 Ensure that the lever arm does not move. 按下马达按钮使样品向杠杆臂运动。 Press the button to sample the motor to lever arm movement. 继续按住马达按钮直到样品触碰(clears)杠杆臂。 Continue to hold the button until the sample touches motor (clears) lever arm. 在进行该操作时,观察和记录在刻度标上所达到的最高数值。 During this operation, observe and record the highest value on the graduated scale achieved. 在相反方向上重复这一程序。 This procedure was repeated in the opposite direction.

6.获得平均两个值。 6. The two average values ​​is obtained. 在该装置上的换算图表中,依据所使用的重量和该重量被放置的位置与杠杆臂上中心的距离,对于1英寸宽×1.5英寸长样品找到系数。 In terms of the graph on the device, the distance and the weight used based on the weight of the placed position of the center of the lever arm, for a 1 inch wide × 1.5 inch long samples found coefficient. 使用定制夹具测试的1.0英寸×3.25英寸样品对应于不使用定制夹具测试的1.0英寸×1.5英寸样品。 Using a custom test fixture 1.0 inches × 3.25 inch sample corresponding to test without the use of custom fixtures 1.0 inches × 1.5 inch sample. 没有定制夹具,样品的0.25英寸是在原夹具中,0.25英寸延伸到杠杆臂的顶部的下方,1英寸是在缝隙之间。 No custom fixtures 0.25 inch sample in the original fixture extends 0.25 inches below the top of the lever arm, is between 1 inch gap. 使用定制夹具,使用在定制夹具中同样0.25-英寸值;在定制夹具中另外1.75-英寸将更厚的样品固定好。 Using a custom jig, using the same 0.25-inch value in the custom jig; additional 1.75 inch thick sample will be fixed in a custom fixture. 同样0.25-英寸延伸到杠杆臂的顶部的下方和在之间同样有1-英寸缝隙。 Also extending into 0.25 inch below the top of the lever arm and also has a gap between the 1- inch.

7.将刻度标上的平均读数乘以在换算图表上找到的合适换算系数。 7. The average reading on a graduated scale conversion factor multiplied by the appropriate scaling found on the chart.

该结果是劲度,它以毫克力(mg)表示。 This stiffness is the result, which in mg force (mg). 可挠性,P,是根据下面的公式来定义:P=106/9.81*劲度。 Flexible, P, is defined according to the following formula: P = 106 / 9.81 * stiffness.

该结果,P,在这里是以1/牛顿(1/N)表示。 As a result, P, where 1 is / Newton (1 / N). FIG. 一般而言,本发明的总体吸收性结构的可挠性应该高于60/N,优选高于80/N。 In general, the overall flexibility of the absorbent structure of the present invention should be above 60 / N, preferably higher than 80 / N.

在本发明中,通过在吸收性结构的制备中采用以下诸项特征中的一个或多个组合已经实现了高水平的柔软性、可挠性和湿完整性:通过使用软纤维,卷曲或皱缩纤维,通过施加软的粘结剂体系例如微细或皱缩粘合纤维、弹性胶乳粘结剂或水溶性的粘结剂,通过最大程度减少粘结剂的量,在固化前的压实过程中采用较低压力,和在固化后的片材的压延过程中使用较低压力。 In the present invention, by using various combinations of one or more items of the following features in the manufacture of the absorbent structure has achieved a high level of softness, flexibility and wet integrity: fiber by using a soft, wrinkled or crimped twitch fibers, by applying a soft binder system such as a fine or crimped binder fibers, latex binder or a water-soluble elastomeric binder, the amount of binder by minimizing compaction process before curing in a lower pressure and a lower pressure in the calendering process using sheet material after curing. 一般而言,在本发明的吸收性结构中压实和/或压延之后片材的密度应该低于0.35g/cc,和优选低于0.3g/cc。 Generally, after compaction and / or calendering in the absorbent structure of the present invention, the sheet density should be less than 0.35g / cc, and preferably less than 0.3g / cc.

在本发明的一个实施方案中,在成网过程中没有使用载体组织片材。 In one embodiment of the present invention, a carrier is not used in the tissue sheet laying process. 通常使用此类载体组织片材并变成该结构的整体部分。 Typically such a tissue sheet and become an integral part of the support structure. 它们增加织网的强度但还增加它的劲度。 They increase the strength, but also mesh to increase its stiffness.

在本发明的另一实施方案中,粘合纤维在该结构中的量小于该结构重量的10%。 In another embodiment of the invention, the amount of binder fiber in the structure is less than 10% of the weight of the structure. 在另一实施方案中,粘合纤维的量低于该结构重量的7%。 In another embodiment, the amount of the binder fibers is less than 7% of the weight of the structure. 典型地,使用高量的粘结剂,它导致可以获得较高完整性但有低的可挠性的吸收性结构。 Typically, a high amount of binder, which leads to a higher integrity can be obtained, but low flexibility of the absorbent structure.

在本发明的另一实施方案中,该结构的柔软性和可挠性是通过在吸收性层片的形成之后整个结构或其组分吸收性层片的机械处理来实现。 In another embodiment of the present invention, the structure softness and flexibility is achieved by mechanical component or the entire structure of the absorbent layer of the absorbent sheet after forming the layer sheet. 此类机械处理包括微皱化,让织网通过槽辊等之间的辊隙。 Such mechanical treatment comprises rugulose, let the fabric passed through the nip between the grooved rollers and the like. 一般而言,在这些程序中,结构内的一些粘结点被破坏,结果,结构变得更贴服舒适。 Generally, in these procedures, a number of bond points within the structure is destroyed as a result, the structure becomes more comfortable fit clothing.

本发明的吸收性结构的完整性高于仅用起毛处理和SAP粉料制造的普通芯材的完整性,并且足够的高使得一片芯材可用于转化中。 Integrity of the absorbent structure of the present invention is higher than normal integrity of the core material only SAP and fluff powder manufacturing process, and sufficiently high such that a core can be used for transformation. 尤其,本发明的吸收性结构的湿完整性高于不用粘结剂所制造的普通芯材和气流成网的芯材的湿完整性。 In particular, wet integrity of the absorbent structure of the present invention is higher than ordinary wet integrity of the core and the core material airlaid produced without binder. 在一个实施方案中,该吸收性芯材具有大于4.0mN/gsm的湿完整性。 In one embodiment, the absorbent core having a wet integrity of greater than 4.0mN / gsm of. 在另一实施方案中,该吸收性芯材具有大于6.0mN/gsm的湿完整性。 In another embodiment, the absorbent core having a wet integrity of greater than 6.0mN / gsm of. 在再一实施方案中,该吸收性芯材具有大于8.0mN/gsm的湿完整性。 In another embodiment, the absorbent core having a wet integrity of greater than 8.0mN / gsm of. 不用任何粘结剂的普通芯材和气流成网的芯材的湿完整性是较低的和一般低于4.0mN/gsm(见表1)。 Without any binder ordinary wet integrity of the core material and the core material is airlaid and lower generally less than 4.0mN / gsm (see Table 1). 对于普通芯材(就地成型),完整性主要取决于起毛纤维的机械缠结。 For ordinary core material (in situ formed), depending on the integrity of the mechanical entanglement of raised fibers. 因为这一机械缠结是部分地归因于纤维的一定量的卷曲,和当该材料被润湿时这一卷曲在至少一定程度上消失。 Because of this mechanical entanglement is partly due to the amount of fiber crimp, and when the material is wetted at least to some extent that the crimped disappear. 普通芯材的完整性也在润湿状态下显著减少。 Common core integrity is also a significant reduction in the wetting state. 对于不用任何粘结剂制造的但高度致密化的气流成网的材料(如描述在US专利5,866,242或5,916,670中的),致密的结构主要借助于氢键来保持在一起。 For without any but highly densified airlaid adhesive material produced (as described in US Patent No. 5,866,242 or 5,916,670), the dense structure held together mainly by means of hydrogen bonds. 然而,当该材料被润湿时氢键完全破坏,于是该吸收性芯材变得非常脆弱。 However, when the material is wetted completely destroy hydrogen bonds, so the absorbent core becomes very vulnerable.

本发明的吸收性结构的柔软性和可挠性是足够高的,这样该材料容易地适应人体的形状或适应吸收性制品的与它邻近的组件(例如另一吸收层)的形状。 The absorbent structure of the present invention, softness and flexibility are sufficiently high such that the material is easily adapted to accommodate the body shape or its adjacent absorbent article components (e.g., another absorbent layer) is shaped. 在一个实施方案中,吸收性结构的柔软性高于8.0/J和吸收性结构的可挠性高于60/N。 In one embodiment, the flexibility of the absorbent structure is greater than 8.0 / J and flexible than the absorbent structure 60 / N.

为了进一步提高吸收性结构的柔软性、可挠性和湿完整性的水平,该结构可使用各种化学和/或机械方法进行处理。 To further enhance the flexibility of the absorbent structure, flexibility and wet integrity horizontally, the structure may be used various chemical and / or mechanical processing method. 不想受任何理论的限制,可以相信,对于吸收性结构的给定组成,以粘结的与未粘结的结构元件的合适比例能够获得所需水平的柔软性、可挠性和湿完整性。 Without wishing to be bound by any theory, it is believed that for a given composition of the absorbent structure, with an appropriate ratio of the adhesive bonding of the structural element is not possible to obtain a desired level of softness, flexibility and wet integrity. 如果在纤维之间或在该纤维和SAP颗粒之间的粘结点的数目的太小,则该结构的湿完整性太低以致于无法实现该吸收性结构在使用期间的改进性能。 If the number of small fibers or between the bond points between the fibers and the SAP particles, the wet integrity of the structure is too low to achieve improved properties of the absorbent structure during use. 当使用者运动时,该低完整性的结构可能无法承受机械应力和可能产生裂缝及其它不连续性时,导致差的液体夹含和随后渗漏。 When the user moves, the low-integrity structures may not withstand mechanical stresses and cracks may be generated and other discontinuities, causing the difference between the liquid containing the folder and subsequent leakage. 另一方面,如果在吸收性结构中粘结点的数目太高,则可挠性和柔软性也太低和结构变得不太舒适,由于形成了不希望有的通道和缝隙(液体通过它们自由流动并从吸收性制品中渗漏出来)而降低了使用性能。 On the other hand, if the number of bonding points in the absorbent structure is too high, flexibility and softness may be too low and becomes less comfortable structure, due to the formation of undesirable gaps and channels (through which liquid free-flowing and leaking out from the absorbent article) decreases the performance.

正如下面所例举的,该吸收性结构可与载体如纤维素组织或合成无纺织物相结合使用。 As exemplified below, the absorbent structure may be used in combination with a carrier such as cellulose tissue or synthetic nonwoven fabric. 该吸收性结构也可与其它层或结构相结合使用形成吸收性结构。 The absorbent structure may also be used in combination with other layers or structures formed in the absorbent structure.

在另一优选实施方案,结构的上层片单独用作吸收性结构。 In another preferred embodiment, the upper layer sheet structure used alone as an absorbent structure. 单层片的结构显示出高的湿完整性,高柔软性和高可挠性,并可用于需要该属性的许多应用中。 Monolayer sheet structure exhibits high wet integrity, high flexibility and high flexibility, and can be used in many applications in need of such property. 此类应用的例子包括一次性吸收性制品如纸尿布,卫生垫料,成人尿失禁用品和运动短裤。 Examples of such applications include disposable absorbent articles such as paper diapers, sanitary litter, adult incontinence articles and training pants.

单层片的吸收性结构能够按照与两层片结构相关的实施例中所给出的同样方法制备。 The absorbent structure of single-layer sheet can be prepared in accordance with embodiments related to two-layer sheet structure in the same manner as in Example given. 另外,单层片的结构可使用采用三个成形头的气流成网机来制造。 Further, the structure can be used single-layer sheet using three forming head airlaid machine manufactured. 使用这样的机器的实例作为实施例8-11在下面列出。 Example of such machines are listed as Examples 8-11 in the following examples.

本发明进一步在下面的非限制性的实施例中来说明。 The present invention is further in the following non-limiting embodiment will be described.

在下面的实施例中,单位重量(gsm)作为目标值列出。 In the following embodiments, the basis weight (gsm) is listed as a target value. 所获得的实际单位重量可在波动至多10%的范围内变化。 The obtained actual basis weight can fluctuate within the range of variation of up to 10%.

实施例1吸收性结构通过将以下所述的上层片(组件A1)和下层片(组件B1)结合在一起来组装。 The absorbent structure of Example 1 by combining the following embodiment of the upper sheet (component A1) and a lower sheet (component B1) assembled together. 两个吸收性组件是通过在M & J中试机器上的干法成型法(或气流成网法)制造。 Two absorbent assembly by the M & amp; dry-forming process on the pilot machine J (or air-laid method). 该结构的机械性能和吸收性质描述在表1,3和4中。 Absorbing properties and mechanical properties of the structure are described in Tables 1, 3 and 4. 与这里所述的商购结构体所观察到的性能相比,该结构显示改进的性能,这归因于模式吸收性与适宜水平的适应性和完整性的兼备。 Herein the commercially available structures observed performance compared, the structure exhibits improved performance, both due to the mode of the absorbent with a suitable level of flexibility and integrity.

组件A1。 Component A1. 使用两个成形头,它们被加入同样组成和同样量的原材料。 Using two forming heads, which are added to the same composition and the same amount of starting material. 在40gsm Brand 6810聚酯(聚对苯二甲酸乙二醇酯)无纺织物(PGI)的载体上铺敷成该产品。 In 40gsm Brand 6810 polyester (polyethylene glycol terephthalate) non-woven fabric support (the PGI) is deposited into the plated product. 这一材料构成了上层片的上基层。 This material forms an upper layer on the substrate sheet. 中间基层和底基层两者的单位重量和组成是相同的,该单位重量是160gsm和组成是56.3%HPF绒毛(Buckeye Technologies Inc.,Memphis,TN),37.5%Z1049 SAP(Stockhausen,Greensboro,NC)和6.2%T-255,2.8dpf(旦尼尔数/每根纤维)热塑性、双组分粘合纤维(Kosa,Salisbury,NC)。 Both the base and subbase intermediate basis weight and composition are the same, the basis weight of 160gsm and a composition of 56.3% HPF fluff (Buckeye Technologies Inc., Memphis, TN), 37.5% Z1049 SAP (Stockhausen, Greensboro, NC) and 6.2% T-255,2.8dpf (denier / per fiber) thermoplastic bicomponent binder fiber (Kosa, Salisbury, NC). 在固化(160℃,1分钟停留时间)之后以最低压力将片材压延至3mm的厚度。 Cured (160 ℃, 1 minute hold time) after the minimum pressure to rolled sheet to a thickness of 3mm.

组件B1。 Component B1. 在第一个成形头中加入75gsm的Foley Fluff(BuckeyeTechnologies)和3gsm的T-255粘合纤维(Kosa,Salisbury,NC)。 The addition of 75gsm Foley Fluff (BuckeyeTechnologies) in the first forming head and 3gsm the T-255 binder fiber (Kosa, Salisbury, NC). 所形成的层是该下层片的中间基层。 The intermediate layer is formed by the base layer of the lower layer sheet. 下层片的上基层是由第二成形头形成的,在其中加入55gsm的Foley Fluff(Buckeye Technologies),12gsm的T-255粘合纤维(Kosa,Salisbury,NC)和215gsm的SXM4750SAP(Stocknausen,Greensboro,NC)。 The lower layer on the substrate sheet is formed by the second forming head added thereto 55gsm of Foley Fluff (Buckeye Technologies), T-255 12gsm binder fiber (Kosa, Salisbury, NC) and a 215gsm SXM4750SAP (Stocknausen, Greensboro, NC). 该产品被铺敷在载体上,后者是Duni Finner K1801纤维素组织(Duni,Kisa,瑞典)。 The product was plated on a carrier, which is a cellulose tissue Duni Finner K1801 (Duni, Kisa, Sweden). 该载体构成了下层片的底基层。 The carrier forms the base layer of the lower layer. 在固化后将片材压延至2mm的厚度。 2mm rolled to a thickness after curing of the sheet.

各组件可通过将该材料的10×20cm A1片材叠放在该材料的10×40cm B1片材的一端上来组装。 The components may be stacked in a 10 × 40cm B1 served the sheet of material 10 × 20cm A1 assembled by the sheet material. 在A1和B1区段重叠的一端进行测量。 Measured at one end of the overlapping sections A1 and B1.

实施例2通过将如下所述的组件A2和组件B2结合在一起来组装一种吸收性结构。 Example 2 By following the assembly of the components A2 and B2 together to assemble an absorbent structure. 两个吸收性组件是通过在M & J中试机器上的干法成型法制造。 Two absorbent assembly by the M & amp; dry-forming process on the pilot machine-J. 在所制造的结构中,组件A2是上层片和组件B2是下层片。 In the structure produced, the component A2 is an upper sheet and lower sheet are components B2. 该结构的机械性能和吸收性质描述在表1,3和4中。 Absorbing properties and mechanical properties of the structure are described in Tables 1, 3 and 4. 该结构显示改进的性能,这归因于模式吸收性与适宜水平的适应性和完整性的兼备。 The structure exhibits improved performance, both due to the mode of the absorbent with a suitable level of flexibility and integrity.

组件A2。 Component A2. 上层片的中间基层是通过在第一成形头中加入40gsm的HPF绒毛(Buckeye Technologies,Memphis,TN)和2.5gsm的2.8dpfT-255粘合纤维(Kosa,Salisbury,NC)来制造。 The intermediate base layer through the upper sheet is the addition of 40gsm fluff HPF (Buckeye Technologies, Memphis, TN) in the first forming head 2.5gsm 2.8dpfT-255 binder fiber (Kosa, Salisbury, NC) and manufactured. 第二成形头用于形成上层片的上基层。 The second forming head for forming an upper layer on the base sheet. 在第二成形头中加入100gsm的HPF绒毛(BuckeyeTechnologies,Memphis,TN),94gsm的Z1049 SAP(Stockhausen,Greensboro,NC)和13gsm的2.8dpf T-255粘合纤维(Kosa,Salisbury,NC)。 The HPF fluff added 100gsm (BuckeyeTechnologies, Memphis, TN) in the second forming head, 94gsm the Z1049 SAP (Stockhausen, Greensboro, NC) and 13gsm of 2.8dpf T-255 binder fiber (Kosa, Salisbury, NC). 该产品被铺敷在载体上,后者是48gsm LicontrolTM 381002(聚丙烯)无纺织物(Jacob-Holm Industries,Soultz,法国)。 The product was plated on a carrier, which is 48gsm LicontrolTM 381002 (PP) nonwoven fabric (Jacob-Holm Industries, Soultz, France). 这一载体构成了上层片的上基层。 This vector constitutes the upper layer on the substrate sheet. 在固化之后该产品以最低压力被压延至3.0mm的厚度。 After curing of the product is rolled to a thickness of 3.0mm at the lowest pressure.

组件B2.使用两个成形头,它们被加入同样组成和同样量的原材料。 Component B2. Using two forming heads, which are added to the raw material of the same composition and the same amount. 该产品被铺敷在载体上,后者是Duni Finner K1801纤维素组织。 The product was plated on a carrier, which is Duni Finner K1801 cellulose tissue. 具有378gsm的单位重量的总体组分B2的组成是34.1%FoleyFluff(Buckeye Technologies),57.1%SXM3950 SAP(Stockhausen,Greensboro,NC),和4%T-255,2.8dpf粘合纤维(Kosa,Salisbury,NC);该结构的余量是18gsm的载体组织。 The overall composition of component B2 having a basis weight of 378gsm was 34.1% FoleyFluff (Buckeye Technologies), 57.1% SXM3950 SAP (Stockhausen, Greensboro, NC), and 4% T-255,2.8dpf binder fiber (Kosa, Salisbury, the NC); the remainder of the structure is 18gsm carrier tissue. 在固化后将片材压延至2mm的厚度。 2mm rolled to a thickness after curing of the sheet.

实施例3通过将如下所述的组件A3和组件B3结合在一起来组装一种吸收性结构。 Example 3 By following the assembly of the component A3 and B3 together to assemble an absorbent structure. 两个吸收性组件是通过在DanWeb中试机器上的干式成型法制造。 Two absorbent assembly is manufactured by a dry molding method on the machine again in a DanWeb. 在所制造的结构中,组件A3是上层片和组件B3是下层片。 In the manufacture of the structure, the assembly is an upper plate and assembly A3 B3 are lower sheet. 该结构的机械性能和吸收性质描述在表1,3和4中。 Absorbing properties and mechanical properties of the structure are described in Tables 1, 3 and 4. 该结构显示改进的性能,这归因于模式吸收性与适宜水平的适应性和完整性的兼备。 The structure exhibits improved performance, both due to the mode of the absorbent with a suitable level of flexibility and integrity.

组件A3.在第一成形头中加入60gsm的Foley Fluff(BuckeyeTechhologies,Memphis,TN)和10gsm的2.8dpf T-255粘合纤维(Kosa,Salisbury,NC),形成了上层片的底基层。 Component A3. 60gsm added in a first forming head of Foley Fluff (BuckeyeTechhologies, Memphis, TN) and 10gsm of 2.8dpf T-255 binder fiber (Kosa, Salisbury, NC), forming a base layer of the topsheet. 第二成形头用于形成上层片的中间基层。 The second intermediate base layer forming head for forming the upper layer sheet. 在第二成形头中加入98gsm的Foley Fluff,62.5gsm的SXM70 SAP(Stockhausen,Greensboro,NC)和19.5gsm的2.8dpfT-255粘合纤维(Kosa,Salisbury,NC)。 98gsm of Foley Fluff is added in the second forming head, 62.5gsm the SXM70 SAP (Stockhausen, Greensboro, NC), and the 19.5gsm 2.8dpfT-255 binder fiber (Kosa, Salisbury, NC). 在第三成形头中加入35gsm的具有15dpf的厚度和6mm的长度的Wellman 376×2聚酯纤维。 35gsm added in the third forming head thickness and having 15dpf polyester Wellman 376 × 2 fiber length of 6mm. 如此形成的上层片的上基层用稀释至10%固体含量的A-181胶乳(AirProducts,Allentown,PA)以5gsm进行喷雾。 Upper layer on the substrate sheet so formed was sprayed to 5gsm diluted to 10% solids content latex A-181 (AirProducts, Allentown, PA). 在固化之后该片材以最低压力被压延至4.1mm的厚度。 After curing the sheet is rolled to a thickness of 4.1mm at the lowest pressure.

组件B3.使用一个成形头并在其中加入128gsm的ND416绒毛(Weyerhaeuser,Tacoma,WA),225gsm的SXM70 SAP(Stockhausen,Greensboro,NC)和22gsm的2.8dpf T-255粘合纤维(Kosa,Salisbury,NC)。 Component B3. And using a forming head added thereto 128gsm ND416 of fluff (Weyerhaeuser, Tacoma, WA), 225gsm of SXM70 SAP (Stockhausen, Greensboro, NC) and 22gsm of 2.8dpf T-255 binder fiber (Kosa, Salisbury, NC). 在Cellutissue 3024纤维素组织载体上铺敷成该产品。 In a cellulose tissue carrier Cellutissue 3024 deposited into the plated product. 在固化后将片材压延至1.9的厚度。 It rolled to a thickness of 1.9 after the sheet is cured.

实施例4通过将如下所述的组件A4和组件B4结合在一起来组装一种吸收性结构。 Example 4 by following the assembly of the A4 and B4 components assembled together an absorbent structure. 两个吸收性组件是通过在DanWeb中试机器上的干式成型法制造。 Two absorbent assembly is manufactured by a dry molding method on the machine again in a DanWeb. 在所制造的结构中,组件A4是上层片和组件B4是下层片。 In the manufacture of the structure, the assembly is an upper A4 sheet and lower sheet are component B4. 该结构的机械性能和吸收性质描述在表1,3和4中。 Absorbing properties and mechanical properties of the structure are described in Tables 1, 3 and 4. 该结构显示改进的性能,这归因于模式吸收性与适宜水平的适应性和完整性的兼备。 The structure exhibits improved performance, both due to the mode of the absorbent with a suitable level of flexibility and integrity.

组件A4.在第一成形头中加入77.6gsm的Foley Fluff(BuckeyeTechnologies,Memphis,TN)和12.4gsm的2.8dpf T-255粘合纤维(Kosa,Salisbury,NC),形成了上层片的底基层。 Component A4. 77.6gsm added in Foley Fluff (BuckeyeTechnologies, Memphis, TN) and a first forming head of 12.4gsm 2.8dpf T-255 binder fiber (Kosa, Salisbury, NC), forming a base layer of the topsheet. 第二成形头用于形成上层片的中间基层。 The second intermediate base layer forming head for forming the upper layer sheet. 在第二成形头中加入102gsm的Foley Fluff,130gsm的SP 1186 SAP(Stockhausen,Greensboro,NC)和28gsm的2.8dpf T-255粘合纤维(Kosa,Salisbury,NC)。 102gsm Foley Fluff is added in the second of the forming head, 130gsm the SP 1186 SAP (Stockhausen, Greensboro, NC) and 28gsm of 2.8dpf T-255 binder fiber (Kosa, Salisbury, NC). 在第三成形头中加入42gsm的具有15dpf的厚度和6mm的长度的Wellman 376×2聚酯纤维。 42gsm added in the third forming head having a Wellman 376 × 2 15dpf polyester fiber thickness and length of 6mm. 如此形成的上层片的上基层用稀释至10%固体含量的A-124胶乳(Air Products,Allentown,PA)以8gsm进行喷雾。 Upper layer on the substrate sheet so formed was sprayed to 8gsm diluted to 10% solids content latex A-124 (Air Products, Allentown, PA). 在固化之后该片材以最低压力被压延至5.7mm的厚度。 After curing the sheet is rolled to a thickness of 5.7mm at the lowest pressure.

组件B4.在第一和第二成形头中加入等量的所有组分,即加入37gsm的ND416绒毛(Weyerhaeuser,Tacoma,WA),92.3gsm的SXM3950SAP(Stockhausen,Greensboro,NC)和5gsm的2.8dpf T-255粘合纤维(Kosa,Salisbury,NC)。 Component B4. All components were added equal amounts of the first and second forming head, i.e., the addition of 37gsm fluff ND416 (Weyerhaeuser, Tacoma, WA), 92.3gsm the SXM3950SAP (Stockhausen, Greensboro, NC) 5gsm of 2.8dpf and T-255 binder fiber (Kosa, Salisbury, NC). 如此形成的网变成下层片的底基层。 Web thus formed into the underlying base layer sheet. 在Cellutissue 3024纤维素组织载体上铺敷成该基层。 In a cellulose tissue carrier Cellutissue 3024 plated into the plating base layer. 在第三成形头中加入38.5gsm的ND416绒毛和8.9gsm的2.8dpf T-255粘合纤维,形成下层片的上基层。 38.5gsm added in the third forming head ND416 of fluff and 8.9gsm 2.8dpf T-255 binder fibers, the lower layer formed on the base layer. 在固化后将最终的片材压延至1.45mm的厚度。 It rolled to a thickness of 1.45mm in the sheet after final curing.

实施例5实施例1,2,3和4的结构用于分析湿完整性,柔软性和可挠性。 Wet integrity, softness and flexibility and Examples 1, 4 for analyzing the structure of Example 5. 所获得的结果总结在表1中。 The results obtained are summarized in Table 1. 在表1中还列出了几种商购一次性婴儿尿布(样品A、B和C)的吸收性芯材以及用绒毛和SAP但没有任何粘结剂所制得的高密度气流成网材料的样品(样品D)的分析结果。 In Table 1 also lists several commercially available disposable baby diapers (samples A, B and C) an absorbent core, and without SAP and fluff with the binder prepared in any high-density airlaid materials the results of (sample D) is. 试验芯材的基本结构参数的测定值示于表2中。 The basic structure of the test parameters measured core material shown in Table 2 below. 在表1中的数据证明,实施例1、2、3和4的吸收性结构比所有其它被测试的商购芯材有高得多的湿完整性和比样品D的芯材有高得多的柔软性和可挠性。 Data in Table 1 demonstrate that the absorbent structure of Example 2, 3 and 4 are commercially available than all other core material being tested much higher than the wet integrity of the core and Sample D has a much higher softness and flexibility.

表1 Table 1

表2 Table 2

实施例6根据在实施例1、2、3和4中描述的程序所制备的结构被测试液体获取性能。 Example 6 The structure prepared in the procedures described in Examples 2, 3 and 4 embodiments are the test liquid acquisition performance. 为了评价获取性能,测量获取时间,即对于给定体积的盐溶液被吸收性结构吸收(直到任何自由液体从吸收材料的表面上消失为止)的时间。 In order to obtain performance evaluation, measurement acquisition time, i.e., for a given volume of salt solution is absorbed (up any free liquid disappears from the surface of the absorbent material) a time the absorbent structure.

下面的方法用于测量该获取时间:1.在测验之前,将样品在实验室中于70°F和50%相对湿度下调理2小时。 The following methods for measuring the acquisition time: 1 Before the test, the samples in the laboratory at 70 ° F and 50% relative humidity conditioning for 2 hours.

2.制备标准盐溶液(0.9wt%NaCl/DI H2O)。 2. Preparation of standard salt solution (0.9wt% NaCl / DI H2O). 如果需要的话,添加染料。 If necessary, add dyes.

3.测定浸蚀体积和所使用的载荷。 3. Determination of the volume and load etching used. 中等容量样品(中等尺寸(尺寸#3)的大多数尿布)使用3×75ml浸蚀区域和0.4-psi的载荷。 Medium volume sample (medium size (size # 3) Most of the diaper) using etching region and a 3 × 75ml of 0.4-psi loading. 在实施例1-4中描述的吸收性结构属于这一类别。 The absorbent structures described in Examples 1 to 4 fall into this category.

4.如果在实验室中或在试验装置(气流成网机)上形成样品,则切成所需尺寸。 Or 4. If the test device is formed on a sample (airlaid machine) in the laboratory, then cut to the desired size. 对于在实验室垫料成型机上制得的样品应该是4英寸×14英寸,和对于在试验装置上制得的样品应该是4英寸×16英寸。 For the resulting dunnage forming machine on a laboratory samples should be 4 inches × 14 inches, and for the resulting sample on the test apparatus should be 4 inches × 16 inches. 如果样品是商品尿布,简单地裁切弹性腿箍,以使尿布平铺而成。 If the sample is a product of the diaper, simply cutting the elastic leg cuff to the diaper tiled together. 对于每个样品取重量/厚度测量值。 To take the weight / thickness measurement for each sample.

5.通过在塑料背片上放置Exxon EMB-685聚乙烯薄膜,和添加覆盖材料,15gsm Avgol纺粘聚丙烯来制备气流成网的样品。 5 by placing on a plastic backing sheet Exxon EMB-685 polyethylene film, covering material, and adding, 15gsm Avgol spunbonded polypropylene sample airlaid be prepared. 确保塑料背片材料向上朝样品的顶部折边以防止在试验时发生渗漏。 Sure the plastic backing sheet material upwardly toward the top of the sample occurs in the fold to prevent leakage during the test.

6.通过在底板上放置样品,将泡沫片固定在样品顶部上,将浸蚀环放入泡沫体的孔中,和然后将称重的顶板固定在泡沫片的上方,来将样品设置在获取装置中。 6. By placing the sample on the bottom plate, the foam sample sheet is fixed to the top of the ring in the holes etched in the foam, weighed and then fixed to the ceiling above the foam sheet to obtain the sample provided apparatus.

7.设定计时器为20分钟并放置在试验装置的旁边。 7. Set the timer to 20 minutes and next placed in the test apparatus.

8.一只手里拿着秒表和另一只手拿着含有浸蚀体积的量筒,以制备浸蚀样品。 8. a stopwatch hand and the other hand holding the graduated cylinder containing the volume of etching, etching to prepare a sample. 将流体倾倒在浸蚀环中。 The fluid poured into the ring etching. 在流体触碰样品的一瞬间起动秒表。 In an instant fluid sample touch start the stopwatch. 尽可能快速地从量筒排空流体。 Drained fluid from the cylinder as quickly as possible. 当流体被样品吸收时停止秒表。 Stop the stopwatch when the fluid is absorbed by the sample.

9.记录样品吸收流体所花费的时间。 9. Record the time of the fluid sample taken for absorption. 一旦流体被样品吸收,启动20分钟计时器。 Once the fluid absorbed by the sample, starting 20 minutes timer.

10.在20分钟后,重复步骤7-9。 10. After 20 minutes, repeat steps 7-9.

11.在另一20分钟后,重复步骤7-9。 11. In another 20 minutes, repeat steps 7-9. 注:如果在获取试验之后不进行其它试验,则在第三次浸蚀之后的20-分钟时间间隔能够省略。 Note: If no other tests after acquisition trial, at 20 minutes interval after the third etching can be omitted. 然而,如果在获取试验之后需要进行另一试验(再润湿和保持或分布),则必须使用该20-分钟时间间隔和然后启动其它试验。 However, if further testing is required (and rewetting retention or distribution) after acquiring the test, you must use the 20-minute interval and then start the other tests.

下面的公式用于计算该获取速率: The following formula is used to calculate the acquisition rate:

通过测试实施例1,2,3和4的结构所获得的结果总结在表3中。 Examples 2, 3 and structure results in Test Example 4 obtained are summarized in Table 3. 在表3中还列出了一些商购尿布制品样品A、B和C的吸收性芯材和另一商购尿布芯材(样品D)的分析结果,具有表2中所述的基本物理性能。 In Table 3 lists some commercially available products of the diaper samples A, analysis B, and C of the absorbent core and the other commercially available diaper core material (Sample D) having basic physical properties described in Table 2 . 表3中的数据包括通过测试实施例1,2,3和4的结构所获得的结果。 The data in Table 3 including the results of Examples 2, 3 and 4 of the structure obtained by the implementation of the test. 这些实施例的结构是根据图1中的说明来组装的。 The structures of the embodiments according to FIG 1 in the assembled described. 在每种情况下在这些结构中上层片的长度是20厘米。 In each case these structures topsheet length is 20 cm. 表3中的结果证明实施例1、2、3和4的吸收性结构具有比样品D短得多的获取时间。 Table 3 The results demonstrate that Examples 1, 2 and 4 of the absorbent structure have a much shorter acquisition time than Sample D. 还可以看出,实施例3和4的吸收性结构具有比所有被测试的商购尿布的芯材更短的获取时间。 It can also be seen that the absorbent structure of Example 3 and 4 all have a shorter than the commercially available diaper core acquisition time tested.

表3: table 3:

实施例7根据在实施例1、2、3和4中描述的程序所制备的结构被测试再润湿性能。 Example 7 The structure prepared in procedures described in Examples 2, 3 and 4 were tested embodiment rewet performance. 为了评价再润湿性能,测量再润湿量,即在用给定量的盐水加以饱和之后在吸收性结构的表面上能够检测到的液体的量。 In order to evaluate the rewet, measuring the amount of rewet, i.e. it is saturated after a given amount of salt to the amount of liquid can be detected on the surface of the absorbent structure.

下面的方法用于测量再润湿量:设计在获取试验之后立即进行再润湿和保持试验。 The following methods for measuring the amount of rewet: design and rewet tests held immediately after acquisition trials. 该获取试验程序必须在起动这一试验之前启动。 The acquisition test program must be started before starting this test. 如果不需要获取信息,则不必记录获取时间,然而,被20-分钟时间间隔分离开的3次浸蚀的模式必须进行。 If no information is acquired, it is not necessary to record the acquisition time, however, are spaced apart points 20 minutes 3 times must be etched pattern. 至关重要的是,在启动这一试验之前已经历20分钟的时间间隔。 It is essential that before starting this test has experienced a 20-minute time interval. 样品/溶液制备与获取试验(参见获取试验文件)中相同。 / Acquisition test and sample solutions were prepared (see document acquisition test) in the same.

1.样品现在被假定已经通过该获取试验和对于最后20-分钟时间间隔内保持不受干扰。 1. The sample is now assumed to have been acquired by the testing and left undisturbed for the last 20 minutes interval. 设定计时器为5分钟并放置在试验装置的旁边。 Set a timer for 5 minutes and placed next to the test apparatus.

2.称量一叠切成与样品同样尺寸的10片Buckeye S-22 Blotterpapers(吸墨纸)。 2. Weigh a stack cut to the same size as the sample 10 Buckeye S-22 Blotterpapers (blotter).

3.除去在样品,泡沫片,和浸蚀环上的重量。 3. Remove the sample weight, the foam sheet, and etching the ring.

4.在样品上放置一叠纸。 4. A stack of paper is placed on the sample.

5.在样品上重新放置泡沫片和重量。 The foam sheet and reposition the sample weight. 启动5-分钟计时器。 Five minute timer starts.

6.在5分钟的结尾,除去重量和称量一叠纸。 6. At the end of 5 minutes, remove and weigh the weight of a stack of paper.

记下在湿和干纸张之间的重量之差。 Referred to the weight difference between the wet and dry paper. 根据下式计算再润湿量:再润湿量(g)=湿纸的重量(g)-干纸的重量(g)下面的公式用于计算在第三次浸蚀之后的再润湿保留量: The rewet calculated: the amount of rewet (g) = wet weight of paper (g) - weight of dry paper (g) the following equation for calculating the third etching after rewetting reserved the amount: 实施例1,2,3和4的结构被测试再润湿量和所获得的结果示于表4中。 The results of Examples 2, 3 and 4 of the structure to be tested and rewet obtained in the embodiment shown in Table 4. 表3中的数据包括通过测试实施例1,2,3和4的结构所获得的结果。 The data in Table 3 including the results of Examples 2, 3 and 4 of the structure obtained by the implementation of the test. 这些实施例的结构是根据图4中的说明来组装的。 The structure according to the embodiment described in FIG. 4 is assembled. 在每种情况下在这些结构中上层片的长度是20厘米。 In each case these structures topsheet length is 20 cm. 在表4中还列出了一些商购尿布制品的吸收性芯材(样品A、B和C)和商购尿布芯材(样品D)的分析结果,具有表2中所述的基本物理性能。 Table 4 lists some commercially available absorbent core of the diaper article (Samples A, B and C) and the commercially available diaper core material (Sample D) of the analysis results with the basic physical properties in Table 2, the . 表4中的数据表明,除了实施例E的样品具有最低再润湿保留值外,所有被测试的其它芯材具有至少97%的再润湿保留值。 Data in Table 4 show that, in addition to the samples of Example E with the lowest retention rewet values, all other tested core material has at least 97% retention of the rewet value.

表4 Table 4

实施例8通过在DanWeb试验装置上干法成型来制造吸收性结构。 Example 8 on a DanWeb test apparatus manufactured dry-forming the absorbent structure. 该结构的机械性能和吸收性质描述在表5和6中。 Absorbing properties and mechanical properties of the structure are described in Tables 5 and 6. 该结构显示改进的性能,这归因于适宜水平的柔软性,可挠性和湿完整性的结合。 The structure exhibits improved performance due to the appropriate level of softness, flexibility and can be combined wet integrity. 三个成形头用于制造该吸收性结构。 Three forming head for producing the absorbent structure. 在具有18gsm的单位重量的Cellutissue 3024的载体上铺敷成该产品。 A carrier having a basis weight of 18gsm spread Cellutissue 3024 is deposited into the product. 在使用之前,这一组织用4gsm双组分粘合纤维,T-255(Kosa,Salisbury,NC)浸渍,该纤维具有2.8旦尼尔/每根纤维的厚度。 Prior to use, the tissues were 4gsm bicomponent binder fibers, T-255 (Kosa, Salisbury, NC) impregnated, the fibers having a thickness of 2.8 denier / per fiber. 这一纤维被沉积在DanWeb试验装置上的载体组织上并加以固化来将该双组分纤维粘结到该组织中。 This support organization DanWeb fibers are deposited on the test device, and cured to be bonded to the bicomponent fibers in the tissue. 这样做的目的是为了获得载体对在其上所形成的产品的良好粘合作用。 The aim is to obtain a good adhesion of the product on its carrier is formed. 该载体组织构成了吸收性结构的底基层。 The support structure composed of a base layer of the absorbent structure. 为了构造下层的中间基层,在机器的第一个成形头中加入96gsm ND416绒毛(Weyerhaeuser,Tacoma,WA)和115gsm超吸收性聚合物SXM70(Stockhausen,Greensboro,NC)。 To construct the lower intermediate base layer, added 96gsm ND416 fluff (Weyerhaeuser, Tacoma, WA), and the superabsorbent polymer 115gsm SXM70 (Stockhausen, Greensboro, NC) in a first forming head of the machine. 然后,在该过程中,上层的中间基层是通过在第二个成形头中加入62gsm的FoleyFluff(Buckeye Technologies,Memphis,TN),25gsm的超吸收性聚合物SXM70,和12gsm的双组分粘合纤维T-255来形成。 Then, in the process, the intermediate base layer through the upper 62gsm added in the second forming head FoleyFluff (Buckeye Technologies, Memphis, TN), 25gsm superabsorbent polymer SXM70, and two-component adhesive 12gsm T-255 fiber is formed. 最后,通过在第三个成形头中加入42gsm Wellman 376×2聚酯纤维(它的厚度是15旦尼尔/每根纤维和长度是6mm)来形成上基层。 Finally, by the addition of 42gsm Wellman 376 × 2 in the third polyester fibers in the forming head (which has a thickness of 15 denier / per fiber and length 6mm) formed on the base layer. 上基层用6gsm的胶乳A-181(Air Products,Allentown,PA)喷雾,胶乳以10%固体含量的浓度。 The concentration of the base layer 6gsm latex A-181 (Air Products, Allentown, PA) sprayed latex at 10% solids content. 该片材被压实至2.6mm的厚度和加以固化。 The sheet was compressed to a thickness of 2.6mm and be cured.

实施例9通过在DanWeb试验装置上干法成型来制造吸收性结构。 9 by forming on a DanWeb test apparatus manufactured dry absorbent structure embodiment. 该结构的机械性能和吸收性质描述在表5和6中。 Absorbing properties and mechanical properties of the structure are described in Tables 5 and 6. 该结构显示改进的性能,这归因于适宜水平的柔软性,可挠性和湿完整性的结合。 The structure exhibits improved performance due to the appropriate level of softness, flexibility and can be combined wet integrity. 三个成形头用于制造该吸收性结构。 Three forming head for producing the absorbent structure. 通过在第一成形头中加入83gsm Foley Fluff和7gsm双组分粘合纤维T-255(具有厚度为2.1旦尼尔/每根纤维)来形成底基层。 T-255 binder fiber 83gsm Foley Fluff by the addition of bicomponent and 7gsm first forming head (having a thickness of 2.1 denier / per fiber) to form the base layer. 通过在第二成形头中加入110gsm Foley Fluff,130gsm超吸收性聚合物SP1186(Stockhausen,Greensboro,NC)和15gsm双组分粘合纤维T-255(具有2.1旦尼尔/每根纤维的厚度)来形成中间基层。 By addition of 110gsm Foley Fluff second forming head, 130gsm superabsorbent polymer SP1186 (Stockhausen, Greensboro, NC) and bicomponent binder fiber 15gsm T-255 (having a thickness of 2.1 denier / per fiber) to form an intermediate base layer. 通过在第三个成形头中加入42gsm Wellman 376×2聚酯纤维(它的厚度是15旦尼尔/每根纤维和长度是6mm)来形成上基层。 By addition of 42gsm Wellman 376 × 2 in the third polyester fibers in the forming head (which has a thickness of 15 denier / per fiber and length 6mm) formed on the base layer. 上基层用8gsm的胶乳A-181以10%固体含量的浓度的喷雾。 On the base layer 8gsm latex A-181 at a concentration of 10% solids content of the spray. 该片材被压实至5.2mm的厚度和加以固化。 The sheet was compressed to a thickness of 5.2mm and be cured.

实施例10通过在DanWeb试验装置上干法成型来制造吸收性结构。 Example 10 A dry test apparatus on a DanWeb molding method for producing the absorbent structure. 该结构的机械性能和吸收性质描述在表5和6中。 Absorbing properties and mechanical properties of the structure are described in Tables 5 and 6. 该结构显示改进的性能,这归因于适宜水平的柔软性,可挠性和湿完整性的结合。 The structure exhibits improved performance due to the appropriate level of softness, flexibility and can be combined wet integrity. 在具有18gsm的单位重量的Cellutissue 3024的载体上铺敷成该产品。 A carrier having a basis weight of 18gsm spread Cellutissue 3024 is deposited into the product. 在使用之前,这一组织用4gsm双组分粘合纤维T-255浸渍,该纤维具有2.8旦尼尔/每根纤维的厚度。 Prior to use, the tissues were 4gsm bicomponent binder fibers impregnated T-255, the fibers having a thickness of 2.8 denier / per fiber. 该载体组织构成了吸收性结构的底基层。 The support structure composed of a base layer of the absorbent structure. 为了构造下层的中间基层,在第一个成形头中加入80gsm的ND416绒毛(Weyerhaeuser,Tacoma,WA)和100gsm的超吸收性聚合物SXM70。 To construct the lower intermediate base layer, the addition of 80gsm fluff ND416 (Weyerhaeuser, Tacoma, WA), and SXM70 100gsm superabsorbent polymer formed in the first header. 通过在第二个成形头中加入79gsm的Foley绒毛和38gsm的超吸收性聚合物SXM70,用第二个成形头形成上层的中间基层。 79gsm by addition of Foley fluff and superabsorbent polymer SXM70 38gsm in the second forming head to form the upper base layer with a second intermediate forming head. 通过在第三个成形头加入具有15旦尼尔/每根纤维的厚度和6mm的长度的Wellman 376×2聚(对苯二甲酸乙二醇酯),来形成上基层。 By the third forming head added with a thickness of 15 denier / per fiber and a length of 6mm Wellman 376 × 2 poly (ethylene terephthalate), formed on the base layer. 这一纤维是以38gsm添加。 This fiber is 38gsm added. 该产品从顶部用Kymene 557H湿态强度树脂(Hercules,Willmington,DE)的水溶液以10%固体的浓度喷雾。 The product from the top with an aqueous solution of Kymene 557H wet strength resin (Hercules, Willmington, DE) at a concentration of 10% solids of the spray. 在网上Kymene固体的目标单位重量是7gsm。 Online Kymene solids per unit weight goal is 7gsm. 由于在所形成结构的上基层中的较高压力和在成型线下方的较低压力之间的差异导致了压力梯度,粘结剂的溶液能够在一定程度上穿透到下面的基层中,因此Kymene能够将上基层和下面的基层粘结在一起。 Due to the higher pressure formed on the base structure and the difference between the lower pressure under the forming line led to the pressure gradient, the adhesive was able to penetrate to some extent into the underlying base layer, so Kymene can be on the substrate below the base layer and bonded together. 该产品经过压延后达到2.6mm的厚度。 After the product is rolled to a thickness of 2.6mm.

实施例11用三个成形头在M & J商购机器上通过干法成型来制造吸收性芯材。 Example 11 with three forming head in M ​​& amp; J commercially available on the molding machine to manufacture the absorbent core by a dry method. 在具有18gsm的单位重量的Cellutissue 3024的载体上铺敷该产品。 A carrier having a basis weight of 18gsm spread plating Cellutissue 3024 of the product. 通过在第一和第二个成形头中加入等量的ND416绒毛,超吸收性聚合物SXM3950(Stockhausen,Greensboro,NC)和具有2.8旦尼尔/每根纤维的厚度的双组分粘合纤维T-255来形成底基层。 By adding an equal amount of the first and second forming head ND416 fluff, superabsorbent polymer SXM3950 (Stockhausen, Greensboro, NC) having a thickness of 2.8 denier / per fiber of bicomponent binder fiber T-255 to form the base layer. 如此形成的底基层的组成(按该基层的总重量计)是23.2%ND416,48.2%SXM3950和2.6%T-255。 Underlayer composition so formed (by total weight of the base layer) was 23.2% ND416,48.2% SXM3950 and 2.6% T-255. 通过在第三成形头中加入38.1gsm的ND416和9gsm的T-255来形成中间基层。 The intermediate base layer is formed by addition of 38.1gsm 9gsm ND416 and third forming head in the T-255. 如此形成的产品用Licontrol 381002-48,48gsm合成无纺织物(Jacob Holm Industries,Soultz,法国)结合,后者构成了该结构的上基层。 The product thus formed with a nonwoven fabric Licontrol 381002-48,48gsm synthesis (Jacob Holm Industries, Soultz, France) in combination, which forms the base layer of the structure. 该结构被分析机械性能和吸收性质。 The structure is analyzed mechanical and absorbent properties. 结果总结在表5和6中该结构显示改进的性能,这归因于适宜水平的柔软性,可挠性和湿完整性的结合。 The results are summarized structure exhibits improved performance in Tables 5 and 6, due to the appropriate level of softness, flexibility and can be combined wet integrity.

实施例12实施例8-11的结构用于分析湿完整性,柔软性和可挠性。 Structure Example 12 Examples 8-11 for analysis wet integrity, softness and flexibility. 所获得的结果列于表6中。 The results obtained are shown in Table 6. 在表6中还给出了用几个商品尿布芯材进行的试验的结果。 In Table 6 also shows the results of several tests performed with the core of the diaper product.

表6中的数据表明,实施例8-11的吸收性结构具有更高的湿完整性,更高的柔软性和更高的可挠性,与全部其它被测试的吸收性芯材相比而言。 The data in Table 6 show that Examples 8-11 of the absorbent structure has a higher wet integrity, greater flexibility and more flexible as compared to all other absorbent core to be tested and statements.

表6 Table 6

实施例13根据在实施例8-11中描述的程序制造的结构可根据以上在实施例7中所述的方法来测试再润湿量。 Example 13 structure manufactured according to the procedure described in Examples 8-11 may rewet the method described above in Example 7 to test according to the embodiment. 实施例8-11的结构和商品吸收性芯材(实施例E)的再润湿保留率的结果列于表7中。 Results rewetting retention structure and the absorbent core product of Example 8-11 (Example E) is shown in Table 7. 能够看出,实施例8-11的结构的再润湿保留率与商购结构(实施例E)的再润湿保留率一样好或更好。 It can be seen that rewetting commercially available retention structure as the embodiment 8-11 of the embodiment as good or better rewetting retention rate (Example E) is.

表7 Table 7

表5 table 5

Claims (52)

1.一种吸收性结构,它具有高于约4.0mN/gsm的湿完整性,高于8.0/J的柔软性,高于大约70/N的可挠性,并在接受一定量的液体之后提供基本上干燥的液体接受面,该结构包括:a)上层片,它具有上流体接收表面和下表面并包括:i)包括用粘结剂粘合的合成基质纤维的上基层,该基质纤维具有大约2-大约15mm的长度;ii)与上基层实现流体连通的中间基层,该中间基层包括天然纤维、超吸收性颗粒和粘结剂;和iii)与中间基层实现流体连通的底基层,该底基层包括天然纤维和粘结剂;和b)与该上层片实现流体连通的下层片,该下层片具有上表面和下表面并包括至少一个基层,该基层包括天然纤维、超吸收性聚合物颗粒和粘结剂,其中上层片的下表面所具有的表面积低于下层片的上表面面积的约80%;c)上层片的上基层的单位重量是大约20gsm到大约120gsm;d)在上层片 1. An absorbent structure having more than about 4.0mN / gsm wet integrity, softness greater than 8.0 / J, above about 70 / N of flexibility, and after receiving a certain amount of liquid providing a substantially dry liquid receiving surface, the structure comprising: a) an upper sheet having an upper fluid receiving surface and a lower surface and comprising: i) a base layer comprising a synthetic matrix fibers are bonded with an adhesive, the matrix fibers has a length of about 2 to about 15mm; ii) realized on the base layer in fluid communication with the intermediate base layer, the intermediate base layer comprising natural fibers, superabsorbent particles and a binder; and iii) an intermediate base layer and the base layer to achieve fluid communication, the underlayer comprises a natural fiber and a binder; and b) to achieve fluid communication with the lower layer to the upper layer, the lower layer sheet having an upper surface and a lower surface and comprising at least a base layer, the base layer comprising natural fiber, superabsorbent polymer about 80% of the surface area of ​​the particles and a binder, wherein the lower surface of the upper layer sheet having a surface area below the lower sheet; c) a basis weight of the base layer of the topsheet is about 20gsm to about 120gsm; d) in The top sheet 上基层中粘结剂含量(重量百分数)是大约5%到大约20%;e)上层片的中间基层的单位重量是大约50gsm到大约1000gsm;f)在上层片的中间基层中粘结剂含量(重量百分数)是大约1%-约10%;g)上层片的底基层的单位重量是大约10gsm到大约150gsm;h)在上层片的底基层中粘结剂含量(重量百分数)是大约5%-大约15%;i)在上层片中超吸收性颗粒含量(重量百分数)低于在下层片中超吸收性颗粒的含量;j)上层片的表观密度低于下层片的表观密度;k)下层片的单位重量是大约100gsm到大约1000gsm;l)下层片的表观密度是大约0.15g/cc到大约0.25g/cc;m)在下层片中粘结剂含量(重量百分数)是大约1%-约8%;和n)该下层片含有相当于下层片的单位重量的至少30%的超吸收性颗粒。 The content of the binder in the base layer (percent by weight) from about 5% to about 20%; basis weight intermediate base layer, e) the upper sheet is about 50gsm to about 1000gsm; f) the content of the binder in the middle of the base layer of the topsheet (percent by weight) from about 1% - about 10%; basis weight substrate g) an upper base sheet is from about 10gsm to about 150gsm; h) on the bottom base layer of the topsheet the binder content (percent by weight) of about 5 % - about 15%; i) in an upper layer sheet of superabsorbent particle content (by weight percent) less than the content of the lower layer of superabsorbent particles; apparent density j) is lower than the apparent density of the upper layer sheet of the lower layer; K ) lower sheet basis weight is from about 1000 gsm to about 100gsm; apparent density l) of the lower layer is from about 0.15g / cc to about 0.25g / cc; m) is approximately in the lower sheet binder content (percent by weight) 1% - to about 8%; and n) of the lower layer contains at least 30 equivalent percent of superabsorbent particles per unit weight of the lower layer.
2.权利要求1的吸收性结构,其中合成基质纤维的长度是大约4到大约12mm。 The absorbent structure of claim 1, wherein the length of the synthetic matrix fibers is from about 4 to about 12mm.
3.权利要求1的吸收性结构,其中合成基质纤维是大约2-大约30旦尼尔/每根纤维。 The absorbent structure of claim 1, wherein the synthetic matrix fibers is about 2 to about 30 denier / per fiber.
4.权利要求3的吸收性结构,其中合成基质纤维是大约6-大约15旦尼尔/每根纤维。 The absorbent structure of claim 3, wherein the synthetic matrix fibers is from about 6 to about 15 denier / per fiber.
5.权利要求1的吸收性结构,其中该合成基质纤维选自聚乙烯,聚丙烯,聚酯,聚酰胺,醋酸纤维素,人造丝纤维,和它们的混合物。 The absorbent structure of claim 1, wherein the synthetic matrix fibers selected from polyethylene, polypropylene, polyester, polyamide, cellulose acetate, rayon fibers, and mixtures thereof.
6.权利要求1的吸收性结构,其中该粘结剂选自胶乳粘合剂,热塑性粉末,热塑性纤维,双组分纤维和它们的混合物。 The absorbent structure of claim 1, a latex binder, thermoplastic powder, thermoplastic fibers, bicomponent fibers and mixtures thereof wherein the binder is selected.
7.权利要求1的吸收性结构,其中粘结剂选自聚酰胺-聚胺表氯醇加合物,阳离子淀粉,双醛淀粉,聚(乙烯醇),脱乙酰壳多糖和它们的混合物。 Polyamine epichlorohydrin adducts, cationic starch, dialdehyde starch, poly (vinyl alcohol), chitosan, and mixtures thereof - an absorbent structure wherein the binder is selected from polyamides claim.
8.权利要求1的吸收性结构,其中天然纤维选自棉花,软木纸浆,硬木纸浆,稻草,克夫纤维,通过化学、机械和/或热处理进行改性的纤维素纤维,角蛋白纤维,和它们的混合物。 The absorbent structure of claim 1, wherein the natural fibers are selected from cotton, softwood pulps, hardwood pulps, straw, quebracho fibers, modified cellulose fibers, keratin fibers by chemical, mechanical and / or thermal treatment, and they mixture.
9.权利要求1的吸收性结构,其中上层片的上基层的单位重量是大约30gsm到大约60gsm。 9. The absorbent structure of claim 1, wherein the basis weight of the base layer on the upper layer sheet is about 30gsm to about 60gsm.
10.权利要求1的吸收性结构,其中在上层片的上基层中合成基质纤维的含量是大约50-大约99wt%。 10. The absorbent structure of claim 1, wherein the upper layer on the substrate sheet in the content of the synthetic matrix fibers is from about 50 to about 99wt%.
11.权利要求10的吸收性结构,其中在上层片的上基层中合成基质纤维的含量是大约75-大约90wt%。 11. The absorbent structure of claim 10, wherein the upper layer on the substrate sheet, the amount of synthetic matrix fibers is about 75 to about 90wt%.
12.权利要求1的吸收性结构,其中上层片的中间基层的单位重量是大约80gsm到大约300gsm。 12. The absorbent structure of claim 1, wherein the base unit weight of the intermediate upper sheet is about 80gsm to about 300gsm.
13.权利要求1的吸收性结构,其中在上层片的中间基层中超吸收性聚合物颗粒的含量是上层片重量的大约5-大约60wt%。 13. The absorbent structure of claim 1, wherein the content of the intermediate base layer of superabsorbent polymer particles topsheet is from about 5 to about 60wt% by weight of the topsheet.
14.权利要求13的吸收性结构,其中在上层片的中间基层中超吸收性聚合物颗粒的含量是大约20-大约50wt%。 14. The absorbent structure of claim 13, wherein the content of the intermediate base layer of superabsorbent polymer particles of the upper layer sheet is about 20 to about 50wt%.
15.权利要求1的吸收性结构,其中上层片的底基层是气流成网的层。 15. The absorbent structure of claim 1, wherein the substrate layer is a layer topsheet airlaid.
16.权利要求1的吸收性结构,其中上层片的底基层是湿法成网的纤维素组织。 16. The absorbent structure of claim 1, wherein the upper substrate layer sheet is a wet-laid cellulose tissue.
17.权利要求1的吸收性结构,其中下层片的表观密度是大约0.15g/cc到大约0.25g/cc。 17. The absorbent structure of claim 1, wherein the apparent density of the lower layer is from about 0.15g / cc to about 0.25g / cc.
18.权利要求1的吸收性结构,其中下层片的单位重量是大约150gsm到大约400gsm。 18. The absorbent structure of claim 1, wherein the basis weight of the lower layer is from about to about 150gsm 400gsm.
19.权利要求1的吸收性结构,其中在下层片中超吸收性聚合物颗粒的含量是大约30-大约80wt%。 19. The absorbent structure of claim 1, wherein the content of the lower layer of superabsorbent polymer particles is from about 30 to about 80wt%.
20.权利要求19的吸收性结构,其中在下层片中超吸收性聚合物颗粒的含量是大约40-大约60wt%。 20. The absorbent structure of claim 19, wherein the content of the lower layer of superabsorbent polymer particles is from about 40 to about 60wt%.
21.权利要求1的吸收性结构,其中各层片的全部层是在该成型过程中全部集合在一起。 21. The absorbent structure of claim 1, wherein all layers of all the plies are brought together in the forming process.
22.权利要求1的吸收性结构,其中各层片是气流成网法而成,其中所述气流成网法是包括以下步骤的整体过程:a)将原料加入一个或多个成形头中以形成片层;b)将所述片层铺敷于载体上;c)以最低压力进行固化,和非必需地d)压延所述片层。 22. The absorbent structure of claim 1, wherein the plies is obtained by airlaying, wherein the airlaid process is the overall process comprising the steps of: a) introducing the feedstock into one or more forming heads to sheet form; b) the sheet layer is plated in the carrier; c) curing the lowest pressure, and optionally d) a calendered sheet.
23.权利要求1的结构,其中超吸收性聚合物颗粒被放置在沿着芯材的长度方向的纵向离散通道内的上层片的至少一个基层中,这些通道包括大约70%-100%超吸收性聚合物颗粒,并且这些通道被包括纤维和粘结剂的相邻通道分离开。 The at least one base layer, the channels of the topsheet 23. The structure of claim 1, wherein the superabsorbent polymer particles are disposed within the longitudinal discrete channels along the longitudinal direction of the core material comprises approximately 70% to 100% superabsorbent polymer particles, and these channels comprises adjacent channels are separated from the fibers and the binder.
24.权利要求1的结构,其中超吸收性聚合物颗粒被放置在沿着芯材的长度方向的纵向离散通道内的下层片中,这些通道包括大约70%-100%超吸收性聚合物颗粒,并且这些通道被包括纤维和粘结剂的相邻通道分离开。 24. The structure of claim 1, wherein the superabsorbent polymer particles are disposed within the longitudinal discrete channels along the longitudinal direction of the lower core sheet, these channels comprising about 70% to 100% superabsorbent polymer particles , and these channels are separated fibers and a binder comprising adjacent channels.
25.一种吸收性结构,它具有高于约4.0mN/gsm的湿完整性,高于8.0/J的柔软性,高于大约70/N的可挠性,并在接受一定量的液体之后提供基本上干燥的液体接受面,该结构包括:a)上层片,它具有上流体接收表面和下表面并包括:i)包括用粘结剂粘合的合成基质纤维的上基层,该基质纤维具有大约2-大约15mm的长度;ii)与上基层实现流体连通的中间基层,该中间基层包括天然纤维和超吸收性颗粒;和iii)与中间基层实现流体连通的底基层,该底基层包括天然纤维和粘结剂;和b)与上层片实现流体连通的下层片,该下层片具有上表面和下表面并包括:i)上基层,它包括天然纤维和粘结剂;和ii)底基层,它包括天然纤维、超吸收性聚合物颗粒和粘结剂,其中:c)上层片的下表面所具有的表面积低于下层片的上表面面积的约80%;d)上层片的上基层基本上不显示出流体 25. An absorbent structure having more than about 4.0mN / gsm wet integrity, softness greater than 8.0 / J, above about 70 / N of flexibility, and after receiving a certain amount of liquid providing a substantially dry liquid receiving surface, the structure comprising: a) an upper sheet having an upper fluid receiving surface and a lower surface and comprising: i) a base layer comprising a synthetic matrix fibers are bonded with an adhesive, the matrix fibers has a length of about 2 to about 15mm; ii) realized on the base layer in fluid communication with the intermediate base layer, the intermediate base layer comprising natural fibers and superabsorbent particles; and iii) an intermediate base layer and the base layer to achieve fluid communication, the underlayer comprises natural fibers and a binder; and b) an upper sheet and lower sheet to achieve fluid communication, the lower layer sheet having an upper surface and a lower surface and comprising: i) a base layer comprising natural fibers and a binder; and ii) a bottom on d) a topsheet; about 80% of the surface area c) the lower surface of the upper sheet having a surface area below the lower layer sheet: a base layer comprising natural fiber, superabsorbent polymer particles and a binder, wherein Primary fluid exhibits essentially no 浸吸能力;e)上基层的上基层的单位重量是大约20gsm到大约120gsm;f)在上层片的上基层中粘结剂含量(重量百分数)是大约5%到大约20%;g)上层片的中间基层的单位重量是大约50gsm到大约1000gsm;h)在上层片的中间基层中粘结剂含量(重量百分数)是大约1%-大约10%;i)上层片的底基层的单位重量是大约10gsm到大约150gsm;j)在上层片的底基层中粘结剂含量(重量百分数)是大约5%-大约15%;k)在上层片中超吸收性颗粒的含量低于在下层片中超吸收性颗粒的含量;l)该下层片含有相当于下层片的总单位重量的至少30%的超吸收性颗粒。 Dip absorption capacity; E) on the base layer on the substrate basis weight is from about 20gsm to about 120gsm; f) content of binder (weight percent) of the upper layer sheet on the substrate is from about 5% to about 20%; g) an upper layer intermediate base sheet basis weight is about 50gsm to about 1000gsm; h) in the middle of the base layer of the topsheet the binder content (percent by weight) from about 1% - about 10%; basis weight substrate i) an upper layer of the base sheet from about 10gsm to about 150gsm; j) on the bottom base layer of the topsheet the binder content (by weight percent) from about 5% - about 15%; k) the content of the upper layer of superabsorbent particles is less than the lower sheet Super content of the absorbent particles; L) comprising the lower layer corresponding to the total basis weight of the lower layer is at least 30% of the superabsorbent particles. m)下层片的上基层含有大约0%到大约20%的超吸收性颗粒,基于下层片的上基层的单位重量;n)下层片的单位重量是大约100gsm到大约1000gsm;o)下层片的表观密度是大约0.15g/cc到大约0.25g/cc;p)上层片的表观密度低于下层片的表观密度;和q)下层片的粘结剂含量(重量百分数)是大约1%-约8%。 m) on the base layer of the lower layer containing about 0% to about 20% superabsorbent particles, based on the basis weight of the base layer of the lower layer; basis weight n) of the lower layer is from about to about 100gsm 1000gsm; o) lower sheet an apparent density of from about 0.15g / cc to about 0.25g / cc; apparent density p) is lower than the lower layer sheet of the topsheet apparent density; and q) the binder content of the lower layer (weight percent) of about 1 % - about 8%.
26.权利要求25的吸收性结构,其中合成基质纤维的长度是大约4到大约12mm。 26. The absorbent structure of claim 25, wherein the length of the synthetic matrix fibers is from about 4 to about 12mm.
27.权利要求25的吸收性结构,其中合成基质纤维是大约2-大约30旦尼尔。 27. The absorbent structure of claim 25, wherein the synthetic matrix fibers is about 2 to about 30 denier.
28.权利要求27的吸收性结构,其中合成基质纤维是大约6-大约15旦尼尔。 28. The absorbent structure of claim 27, wherein the synthetic matrix fibers is from about 6 to about 15 denier.
29.权利要求25的吸收性结构,其中该合成基质纤维选自聚乙烯,聚丙烯,聚酯,聚酰胺,醋酸纤维素,人造丝纤维,和它们的混合物。 29. The absorbent structure of claim 25, wherein the synthetic matrix fibers selected from polyethylene, polypropylene, polyester, polyamide, cellulose acetate, rayon fibers, and mixtures thereof.
30.权利要求25的吸收性结构,其中该粘结剂选自胶乳粘合剂,热塑性粉末,热塑性纤维,双组分纤维和它们的混合物。 30. The absorbent structure as claimed in claim 25, a latex binder, thermoplastic powder, thermoplastic fibers, bicomponent fibers and mixtures thereof wherein the binder is selected.
31.权利要求25的吸收性结构,其中粘结剂是水溶性或水可分散性聚合物粘结剂。 31. The absorbent structure of claim 25, wherein the binder is a water soluble or water dispersible polymeric binder.
32.权利要求25的吸收性结构,其中天然纤维选自棉花,软木纸浆,硬木纸浆,稻草,克夫纤维,通过化学、机械和/或热处理进行改性的纤维素纤维,角蛋白纤维,和它们的混合物。 32. The absorbent structure of claim 25, wherein the natural fibers are selected from cotton, softwood pulps, hardwood pulps, straw, quebracho fibers, modified cellulose fibers, keratin fibers by chemical, mechanical and / or thermal treatment, and they mixture.
33.权利要求25的吸收性结构,其中上层片的上基层的单位重量是大约30gsm到大约60gsm。 33. The absorbent structure of claim 25, wherein the basis weight of the base layer on the upper layer sheet is from about 30gsm to about 60gsm.
34.权利要求25的吸收性结构,其中在上层片的上基层中合成基质纤维的含量是大约50-大约99wt%。 34. The absorbent structure of claim 25, wherein the upper layer on the substrate sheet in the content of the synthetic matrix fibers is from about 50 to about 99wt%.
35.权利要求25的吸收性结构,其中在上层片的上基层中合成基质纤维的含量是大约75-大约90wt%。 35. The absorbent structure of claim 25, wherein the upper layer on the substrate sheet, the amount of synthetic matrix fibers is about 75 to about 90wt%.
36.权利要求25的吸收性结构,其中上层片的中间基层的单位重量是大约80gsm到大约300gsm。 36. The absorbent structure of claim 25, wherein the base unit weight of the intermediate upper sheet is about 80gsm to about 300gsm.
37.权利要求25的吸收性结构,其中在上层片的中间基层中超吸收性聚合物颗粒的含量是上层片重量的大约5-大约60wt%。 37. The absorbent structure of claim 25, wherein the content of the intermediate base layer of superabsorbent polymer particles topsheet is from about 5 to about 60wt% by weight of the topsheet.
38.权利要求25的吸收性结构,其中在上层片的中间基层中超吸收性聚合物颗粒的含量是上层片重量的大约20-大约50wt%。 38. The absorbent structure of claim 25, wherein the content of the intermediate base layer of superabsorbent polymer particles of the upper layer sheet is about 20 to about 50wt% by weight of the topsheet.
39.权利要求25的吸收性结构,其中下层片的单位重量是大约150gsm到大约400gsm。 39. The absorbent structure of claim 25, wherein the basis weight of the lower layer is from about to about 150gsm 400gsm.
40.权利要求25的吸收性结构,其中在下层片中超吸收性聚合物颗粒的总含量是大约30-大约80wt%。 40. The absorbent structure of claim 25, wherein the total content of the lower layer of superabsorbent polymer particles is from about 30 to about 80wt%.
41.权利要求25的吸收性结构,其中在下层片中超吸收性聚合物颗粒的含量是大约40-大约60wt%。 41. The absorbent structure of claim 25, wherein the content of the lower layer of superabsorbent polymer particles is from about 40 to about 60wt%.
42.权利要求25的吸收性结构,其中上层片的底基层是气流成网的层。 42. The absorbent structure of claim 25, wherein the substrate layer is a layer topsheet airlaid.
43.权利要求25的吸收性结构,其中上层片的底基层是湿法成网的纤维素组织。 43. The absorbent structure as claimed in claim 25, wherein the upper substrate layer sheet is a wet-laid cellulose tissue.
44.权利要求25的吸收性结构,其中下层片的上基层的单位重量是大约10gsm到大约150gsm。 44. The absorbent structure as claimed in claim 25, wherein the basis weight of the base layer on the lower layer is from about 10gsm to about 150gsm.
45.权利要求25的吸收性结构,其中下层片的上基层的单位重量是大约15gsm到大约90gsm。 45. The absorbent structure as claimed in claim 25, wherein the basis weight of the base layer on the lower layer is from about 15gsm to about 90gsm.
46.权利要求25的吸收性结构,其中各层片的全部基层是在该成型过程中全部集合在一起。 46. ​​The absorbent structure of claim 25, wherein all of the base layer of each ply are all brought together in the forming process.
47.权利要求25的吸收性结构,它由气流成网法而成,其中所述气流成网法是包括以下步骤的整体过程:a)将原料加入一个或多个成形头中以形成片层;b)将所述片层铺敷于载体上;c)以最低压力进行固化,和非必需地d)压延所述片层。 47. The absorbent structure as claimed in claim 25, which is made by the airlaid process, wherein the airlaid process is the overall process comprising the steps of: a) introducing the feedstock into one or more forming head to form the sheet ; b) the sheet layer is plated in the carrier; c) curing the lowest pressure, and optionally d) a calendered sheet.
48.权利要求25的结构,其中超吸收性聚合物颗粒被放置在沿着芯材的长度方向的纵向离散通道内的上层片的至少一个基层中,这些通道包括大约70%-100%超吸收性聚合物颗粒,并且这些通道被包括纤维和粘结剂的相邻通道分离开。 The at least one base layer, the channels of the upper sheet 48. The structure of claim 25, wherein the superabsorbent polymer particles are disposed within the longitudinal discrete channels along the longitudinal direction of the core material comprises approximately 70% to 100% superabsorbent polymer particles, and these channels comprises adjacent channels are separated from the fibers and the binder.
49.权利要求25的结构,其中超吸收性聚合物颗粒被放置在沿着芯材的长度方向的纵向离散通道内的下层片的至少一个基层中,这些通道包括大约70%-100%超吸收性聚合物颗粒,并且这些通道被包括纤维和粘结剂的相邻通道分离开。 The at least one base layer, the channels 49. The structure of claim 25, wherein the superabsorbent polymer particles are disposed within the longitudinal discrete channels along the longitudinal direction of the core material of the lower layer sheet comprising about 70% to 100% superabsorbent polymer particles, and these channels comprises adjacent channels are separated from the fibers and the binder.
50.吸收性结构,它包括:a)上层片,包括:i)上基层,它包括用胶乳以相当于上基层重量的15-25wt%的量来粘结的聚酯基质纤维,该基质纤维具有大约4mm到大约8mm的长度和大约9到大约15旦尼尔/每根纤维的厚度,上基层的单位重量是大约40到大约60gsm;ii)与上基层实现流体连通的中间基层,该中间基层包括软木绒毛、超吸收性聚合物颗粒和粘合纤维,超吸收性聚合物颗粒的含量是中间基层的单位重量的大约30-40%,粘合纤维的含量是中间基层的单位重量的大约6到大约12%,和中间基层的单位重量是大约150到大约200gsm;iii)与中间基层实现流体连通的底基层,它包括软木绒毛和粘合纤维,粘合纤维的含量是底基层的单位重量的大约8到大约16%,和底基层的单位重量是大约60到大约120gsm;和b)与上层片实现流体连通的下层片,该下层片包括:i)上基层,包括软木 50. The absorbent structure, comprising: a) an upper sheet, comprising: i) a base layer, a latex which comprises 15-25wt% of the amount corresponding to the weight of the base layer bonded to the polyester matrix fibers, the matrix fibers having a length of about 4mm to about 8mm and about 9 to about 15 denier thickness / of each fiber, the basis weight of the base layer is about 40 to about 60gsm; ii) intermediate base layer and the base layer to achieve fluid communication, the intermediate the base layer comprises softwood fluff, superabsorbent polymer particles and a binder fiber, the content of the superabsorbent polymer particles is from about 30-40% by weight of units of the intermediate base layer, the content of the binder fiber per weight of the base layer about the intermediate 6 to about 12%, and the basis weight of the intermediate base layer is about 150 to about 200gsm; iii) implement the base layer and the intermediate base layer in fluid communication, comprising softwood fluff fibers and binder, the content of bonding fibers is a bottom base unit from about 8 to about 16% by weight, and the basis weight of the base layer is from about 60 to about 120 gsm; and b) a lower sheet and the upper sheet to achieve fluid communication, the lower layer sheet comprising: i) a base layer comprising cork 绒毛和粘合纤维,粘合纤维的含量是上基层的单位重量的大约10到大约25%,和单位重量是大约20到大约60gsm;ii)底基层,包括软木绒毛、超吸收性聚合物颗粒和粘合纤维,超吸收性聚合物颗粒的含量是底基层的单位重量的大约50到80%,粘合纤维的含量是底基层的单位重量的大约2到5%;和iii)纤维素组织,在它之上形成了下层片,其中:c)具有与下层片相邻的表面面积的上层片,该表面积是下层片的面对表面积的大约40%到60%;d)上层片的密度是大约0.05到大约1.0g/cc;e)下层片的密度是大约0.15到0.3g/cc。 Fluff and the binder fiber, the fiber content of the binder is from about 10 to about 25% by weight of the base unit, and a basis weight from about 20 to about 60gsm; ii) subbase, including softwood fluff, superabsorbent polymer particles and bonding fibers, superabsorbent polymer particles content is about 50-80% by weight of units of the subbase, the content of the binder fiber is about 2-5% by weight of units of the subbase; and iii) cellulose tissue density d) a topsheet; c) having a lower layer adjacent to the upper surface area of ​​the sheet, the surface area is from about 40% to 60% of the surface area of ​​the lower face of the sheet:, which is formed on a lower layer, wherein from about 0.05 to about 1.0g / cc; density e) the lower layer is from about 0.15 to 0.3g / cc.
51.吸收性结构,它包括:a)上层片,含有:i)上基层,它包括用胶乳以相当于上基层重量的15-25wt%的量来粘结的聚酯基质纤维,该基质纤维具有大约4mm到大约8mm的长度和大约9到大约15旦尼尔/每根纤维的厚度,上基层的单位重量是大约40到大约60gsm;ii)与上基层实现流体连通的中间基层,该中间基层包括软木绒毛、超吸收性聚合物颗粒和粘合纤维,超吸收性聚合物颗粒的含量是中间基层的单位重量的大约40-60%,粘合纤维的含量是中间基层的单位重量的大约6%到大约12%,和中间基层的单位重量是大约200到大约280gsm;iii)与中间基层实现流体连通的底基层,它包括软木绒毛和粘合纤维,粘合纤维的含量是底基层的单位重量的大约8到大约16%,和底基层的单位重量是大约60到大约120gsm;和b)与上层片实现流体连通的下层片,该下层片包括:i)上基层,包括软 51. The absorbent structure, comprising: a) an upper sheet, comprising: i) a base layer comprising a latex on the substrate corresponding to an amount of 15-25wt% by weight of the fibers to bond polyester matrix, the matrix fibers having a length of about 4mm to about 8mm and about 9 to about 15 denier thickness / of each fiber, the basis weight of the base layer is about 40 to about 60gsm; ii) intermediate base layer and the base layer to achieve fluid communication, the intermediate the base layer comprises softwood fluff, superabsorbent polymer particles and a binder fiber, the content of the superabsorbent polymer particles is from about 40-60% by weight of units of the intermediate base layer, the content of the binder fiber per weight of the base layer about the intermediate 6% to about 12%, and the basis weight of the intermediate base layer is about 200 to about 280gsm; iii) implement the base layer and the intermediate base layer in fluid communication, comprising softwood fluff fibers and binder, the binder fiber content subbase from about 8 to about 16% by weight of the unit, and the basis weight of the base layer is from about 60 to about 120 gsm; and b) a lower sheet and the upper sheet to achieve fluid communication, the lower layer sheet comprising: i) a base layer comprising a soft 木绒毛和粘合纤维,粘合纤维的含量是上基层的单位重量的大约10到大约25%,和单位重量是大约20到大约60gsm;ii)底基层,包括软木绒毛、超吸收性聚合物颗粒和粘合纤维,超吸收性聚合物颗粒的含量是底基层的单位重量的大约40%到大约60%,粘合纤维的含量是底基层的单位重量的大约2%到5%,和底基层的单位重量是大约200到大约350gsm;和iii)纤维素组织,在它之上形成了下层片,其中:c)具有与下层片相邻的表面面积的上层片,该表面积是下层片的面对表面积的大约40%到60%;d)上层片的密度是大约0.05到大约1.0g/cc;e)下层片的密度是大约0.15到0.3g/cc。 Wood fluff fibers and binder, the binder content of the fiber is from about 10 to about 25% by weight of the base unit, and a basis weight from about 20 to about 60gsm; ii) subbase, including softwood fluff, superabsorbent polymers particles and a binder fiber, the content of the superabsorbent polymer particles is from about 40% to about 60% by weight of units of the subbase, the binder content of the fiber is from about 2% to 5% by weight of units of the sub-base, and bottom basis weight of the base layer is about 200 to about 350 gsm; and iii) a cellulose tissue, which is formed on a lower layer, wherein: c) having a lower layer adjacent to the upper surface area of ​​the sheet, the surface area of ​​the lower layer face of about 40% to 60% of the surface area; D) density of the upper layer sheet is about 0.05 to about 1.0g / cc; density e) the lower layer is from about 0.15 to 0.3g / cc.
52.一种吸收性结构,它具有高于约4.0mN/gsm的湿完整性,高于8.0/J的柔软性,高于大约70/N的可挠性,并在接受一定量的液体之后提供基本上干燥的液体接受面,该结构包括:a)上层片,它具有上流体接收表面和下表面并包括:i)包括用粘结剂粘合的合成基质纤维的上基层,该基质纤维具有大约2-大约15mm的长度;ii)与上基层实现流体连通的中间基层,该中间基层包括天然纤维、超吸收性颗粒和粘结剂;和iii)与中间基层实现流体连通的底基层,该底基层包括天然纤维和粘结剂;和b)与该上层片实现流体连通的下层片,该下层片具有上表面和下表面并包括至少一个基层,该基层包括天然纤维、超吸收性聚合物颗粒和粘结剂,其中上层片的下表面所具有的表面积低于下层片的上表面面积的约80%。 52. An absorbent structure having more than about 4.0mN / gsm wet integrity, softness greater than 8.0 / J, above about 70 / N of flexibility, and after receiving a certain amount of liquid providing a substantially dry liquid receiving surface, the structure comprising: a) an upper sheet having an upper fluid receiving surface and a lower surface and comprising: i) a base layer comprising a synthetic matrix fibers are bonded with an adhesive, the matrix fibers has a length of about 2 to about 15mm; ii) realized on the base layer in fluid communication with the intermediate base layer, the intermediate base layer comprising natural fibers, superabsorbent particles and a binder; and iii) an intermediate base layer and the base layer to achieve fluid communication, the underlayer comprises a natural fiber and a binder; and b) to achieve fluid communication with the lower layer to the upper layer, the lower layer sheet having an upper surface and a lower surface and comprising at least a base layer, the base layer comprising natural fiber, superabsorbent polymer about 80% of the surface area of ​​the particles and a binder, wherein the lower surface of the upper sheet having a surface area below the lower layer sheet.
CNB00802703XA 1999-01-11 2000-01-10 High performance absorbent structure CN1139482C (en)

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BR0008613A (en) 2001-11-06
US20070152365A1 (en) 2007-07-05

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